scala.collection.immutable

StringOps

final class StringOps extends AnyVal with StringLike[String]

This class serves as a wrapper providing Strings with all the operations found in indexed sequences. Where needed, instances of String object are implicitly converted into this class.

The difference between this class and WrappedString is that calling transformer methods such as filter and map will yield a String object, whereas a WrappedString will remain a WrappedString.

Source
StringOps.scala
Since

2.8

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Inherited
  1. StringOps
  2. StringLike
  3. Ordered
  4. Comparable
  5. IndexedSeqOptimized
  6. IndexedSeqLike
  7. SeqLike
  8. GenSeqLike
  9. IterableLike
  10. GenIterableLike
  11. TraversableLike
  12. GenTraversableLike
  13. Parallelizable
  14. TraversableOnce
  15. GenTraversableOnce
  16. FilterMonadic
  17. HasNewBuilder
  18. Equals
  19. AnyVal
  20. NotNull
  21. Any
Implicitly
  1. by unaugmentString
  2. by traversable2ops
  3. by MonadOps
  4. by any2stringadd
  5. by any2stringfmt
  6. by any2ArrowAssoc
  7. by any2Ensuring
  8. by alternateImplicit
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  1. Public
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Instance Constructors

  1. new StringOps(repr: String)

    repr

    the actual representation of this string operations object.

Type Members

  1. class Elements extends AbstractIterator[A] with BufferedIterator[A] with Serializable

    The class of the iterator returned by the iterator method.

  2. type Self = String

    The type implementing this traversable

    The type implementing this traversable

    Attributes
    protected
    Definition Classes
    TraversableLike
  3. class WithFilter extends FilterMonadic[A, Repr]

    A class supporting filtered operations.

Value Members

  1. final def !=(arg0: Any): Boolean

    Test two objects for inequality.

    Test two objects for inequality.

    returns

    true if !(this == that), false otherwise.

    Definition Classes
    Any
  2. final def ##(): Int

    Equivalent to x.hashCode except for boxed numeric types and null.

    Equivalent to x.hashCode except for boxed numeric types and null. For numerics, it returns a hash value which is consistent with value equality: if two value type instances compare as true, then ## will produce the same hash value for each of them. For null returns a hashcode where null.hashCode throws a NullPointerException.

    returns

    a hash value consistent with ==

    Definition Classes
    Any
  3. def *(n: Int): String

    Return the current string concatenated n times.

    Return the current string concatenated n times.

    Definition Classes
    StringLike
  4. def ++[B](that: GenTraversableOnce[B]): String[B]

    [use case] Returns a new string containing the elements from the left hand operand followed by the elements from the right hand operand.

    [use case]

    Returns a new string containing the elements from the left hand operand followed by the elements from the right hand operand. The element type of the string is the most specific superclass encompassing the element types of the two operands.

    Example:

    scala> val a = LinkedList(1)
    a: scala.collection.mutable.LinkedList[Int] = LinkedList(1)
    
    scala> val b = LinkedList(2)
    b: scala.collection.mutable.LinkedList[Int] = LinkedList(2)
    
    scala> val c = a ++ b
    c: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2)
    
    scala> val d = LinkedList('a')
    d: scala.collection.mutable.LinkedList[Char] = LinkedList(a)
    
    scala> val e = c ++ d
    e: scala.collection.mutable.LinkedList[AnyVal] = LinkedList(1, 2, a)
    B

    the element type of the returned collection.

    that

    the traversable to append.

    returns

    a new string which contains all elements of this string followed by all elements of that.

    Definition Classes
    TraversableLikeGenTraversableLike
    Full Signature

    def ++[B >: Char, That](that: GenTraversableOnce[B])(implicit bf: CanBuildFrom[String, B, That]): That

  5. def ++:[B >: Char, That](that: collection.Traversable[B])(implicit bf: CanBuildFrom[String, B, That]): That

    As with ++, returns a new collection containing the elements from the left operand followed by the elements from the right operand.

    As with ++, returns a new collection containing the elements from the left operand followed by the elements from the right operand.

    It differs from ++ in that the right operand determines the type of the resulting collection rather than the left one. Mnemonic: the COLon is on the side of the new COLlection type.

    Example:

    scala> val x = List(1)
    x: List[Int] = List(1)
    
    scala> val y = LinkedList(2)
    y: scala.collection.mutable.LinkedList[Int] = LinkedList(2)
    
    scala> val z = x ++: y
    z: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2)

    This overload exists because: for the implementation of ++: we should reuse that of ++ because many collections override it with more efficient versions.

    Since TraversableOnce has no ++ method, we have to implement that directly, but Traversable and down can use the overload.

    B

    the element type of the returned collection.

    That

    the class of the returned collection. Where possible, That is the same class as the current collection class Repr, but this depends on the element type B being admissible for that class, which means that an implicit instance of type CanBuildFrom[Repr, B, That] is found.

    that

    the traversable to append.

    bf

    an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and the new element type B.

    returns

    a new collection of type That which contains all elements of this string followed by all elements of that.

    Definition Classes
    TraversableLike
  6. def ++:[B](that: TraversableOnce[B]): String[B]

    [use case] As with ++, returns a new collection containing the elements from the left operand followed by the elements from the right operand.

    [use case]

    As with ++, returns a new collection containing the elements from the left operand followed by the elements from the right operand.

    It differs from ++ in that the right operand determines the type of the resulting collection rather than the left one. Mnemonic: the COLon is on the side of the new COLlection type.

    Example:

    scala> val x = List(1)
    x: List[Int] = List(1)
    
    scala> val y = LinkedList(2)
    y: scala.collection.mutable.LinkedList[Int] = LinkedList(2)
    
    scala> val z = x ++: y
    z: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2)
    B

    the element type of the returned collection.

    that

    the traversable to append.

    returns

    a new string which contains all elements of this string followed by all elements of that.

    Definition Classes
    TraversableLike
    Full Signature

    def ++:[B >: Char, That](that: TraversableOnce[B])(implicit bf: CanBuildFrom[String, B, That]): That

  7. def +:(elem: A): String[A]

    [use case] A copy of the string with an element prepended.

    [use case]

    A copy of the string with an element prepended.

    Note that :-ending operators are right associative (see example). A mnemonic for +: vs. :+ is: the COLon goes on the COLlection side.

    Also, the original string is not modified, so you will want to capture the result.

    Example:

    scala> val x = LinkedList(1)
    x: scala.collection.mutable.LinkedList[Int] = LinkedList(1)
    
    scala> val y = 2 +: x
    y: scala.collection.mutable.LinkedList[Int] = LinkedList(2, 1)
    
    scala> println(x)
    LinkedList(1)
    elem

    the prepended element

    returns

    a new string consisting of elem followed by all elements of this string.

    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def +:[B >: Char, That](elem: B)(implicit bf: CanBuildFrom[String, B, That]): That

  8. def ->[B](y: B): (StringOps, B)

    Implicit information
    This member is added by an implicit conversion from StringOps to ArrowAssoc[StringOps] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  9. def /:[B](z: B)(op: (B, Char) ⇒ B): B

    Applies a binary operator to a start value and all elements of this string, going left to right.

    Applies a binary operator to a start value and all elements of this string, going left to right.

    Note: /: is alternate syntax for foldLeft; z /: xs is the same as xs foldLeft z.

    Examples:

    Note that the folding function used to compute b is equivalent to that used to compute c.

    scala> val a = LinkedList(1,2,3,4)
    a: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2, 3, 4)
    
    scala> val b = (5 /: a)(_+_)
    b: Int = 15
    
    scala> val c = (5 /: a)((x,y) => x + y)
    c: Int = 15
    B

    the result type of the binary operator.

    z

    the start value.

    op

    the binary operator.

    returns

    the result of inserting op between consecutive elements of this string, going left to right with the start value z on the left:

    op(...op(op(z, x_1), x_2), ..., x_n)

    where x1, ..., xn are the elements of this string.

    Definition Classes
    TraversableOnceGenTraversableOnce
  10. def :+(elem: A): String[A]

    [use case] A copy of this string with an element appended.

    [use case]

    A copy of this string with an element appended.

    A mnemonic for +: vs. :+ is: the COLon goes on the COLlection side.

    Example:

    scala> import scala.collection.mutable.LinkedList
    import scala.collection.mutable.LinkedList
    
    scala> val a = LinkedList(1)
    a: scala.collection.mutable.LinkedList[Int] = LinkedList(1)
    
    scala> val b = a :+ 2
    b: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2)
    
    scala> println(a)
    LinkedList(1)
    elem

    the appended element

    returns

    a new string consisting of all elements of this string followed by elem.

    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def :+[B >: Char, That](elem: B)(implicit bf: CanBuildFrom[String, B, That]): That

  11. def :\[B](z: B)(op: (Char, B) ⇒ B): B

    Applies a binary operator to all elements of this string and a start value, going right to left.

    Applies a binary operator to all elements of this string and a start value, going right to left.

    Note: :\ is alternate syntax for foldRight; xs :\ z is the same as xs foldRight z.

    Examples:

    Note that the folding function used to compute b is equivalent to that used to compute c.

    scala> val a = LinkedList(1,2,3,4)
    a: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2, 3, 4)
    
    scala> val b = (a :\ 5)(_+_)
    b: Int = 15
    
    scala> val c = (a :\ 5)((x,y) => x + y)
    c: Int = 15
    B

    the result type of the binary operator.

    z

    the start value

    op

    the binary operator

    returns

    the result of inserting op between consecutive elements of this string, going right to left with the start value z on the right:

    op(x_1, op(x_2, ... op(x_n, z)...))

    where x1, ..., xn are the elements of this string.

    Definition Classes
    TraversableOnceGenTraversableOnce
  12. def <(that: String): Boolean

    Returns true if this is less than that

    Returns true if this is less than that

    Definition Classes
    Ordered
  13. def <=(that: String): Boolean

    Returns true if this is less than or equal to that.

    Returns true if this is less than or equal to that.

    Definition Classes
    Ordered
  14. final def ==(arg0: Any): Boolean

    Test two objects for equality.

    Test two objects for equality. The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    Definition Classes
    Any
  15. def >(that: String): Boolean

    Returns true if this is greater than that.

    Returns true if this is greater than that.

    Definition Classes
    Ordered
  16. def >=(that: String): Boolean

    Returns true if this is greater than or equal to that.

    Returns true if this is greater than or equal to that.

    Definition Classes
    Ordered
  17. def addString(b: StringBuilder): StringBuilder

    Appends all elements of this string to a string builder.

    Appends all elements of this string to a string builder. The written text consists of the string representations (w.r.t. the method toString) of all elements of this string without any separator string.

    Example:

    scala> val a = LinkedList(1,2,3,4)
    a: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2, 3, 4)
    
    scala> val b = new StringBuilder()
    b: StringBuilder =
    
    scala> val h = a.addString(b)
    b: StringBuilder = 1234
    b

    the string builder to which elements are appended.

    returns

    the string builder b to which elements were appended.

    Definition Classes
    TraversableOnce
  18. def addString(b: StringBuilder, sep: String): StringBuilder

    Appends all elements of this string to a string builder using a separator string.

    Appends all elements of this string to a string builder using a separator string. The written text consists of the string representations (w.r.t. the method toString) of all elements of this string, separated by the string sep.

    Example:

    scala> val a = LinkedList(1,2,3,4)
    a: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2, 3, 4)
    
    scala> val b = new StringBuilder()
    b: StringBuilder =
    
    scala> a.addString(b, ", ")
    res0: StringBuilder = 1, 2, 3, 4
    b

    the string builder to which elements are appended.

    sep

    the separator string.

    returns

    the string builder b to which elements were appended.

    Definition Classes
    TraversableOnce
  19. def addString(b: StringBuilder, start: String, sep: String, end: String): StringBuilder

    Appends all elements of this string to a string builder using start, end, and separator strings.

    Appends all elements of this string to a string builder using start, end, and separator strings. The written text begins with the string start and ends with the string end. Inside, the string representations (w.r.t. the method toString) of all elements of this string are separated by the string sep.

    Example:

    scala> val a = LinkedList(1,2,3,4)
    a: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2, 3, 4)
    
    scala> val b = new StringBuilder()
    b: StringBuilder =
    
    scala> a.addString(b, "LinkedList(", ", ", ")")
    res1: StringBuilder = LinkedList(1, 2, 3, 4)
    b

    the string builder to which elements are appended.

    start

    the starting string.

    sep

    the separator string.

    end

    the ending string.

    returns

    the string builder b to which elements were appended.

    Definition Classes
    TraversableOnce
  20. def aggregate[B](z: B)(seqop: (B, Char) ⇒ B, combop: (B, B) ⇒ B): B

    Aggregates the results of applying an operator to subsequent elements.

    Aggregates the results of applying an operator to subsequent elements.

    This is a more general form of fold and reduce. It has similar semantics, but does not require the result to be a supertype of the element type. It traverses the elements in different partitions sequentially, using seqop to update the result, and then applies combop to results from different partitions. The implementation of this operation may operate on an arbitrary number of collection partitions, so combop may be invoked an arbitrary number of times.

    For example, one might want to process some elements and then produce a Set. In this case, seqop would process an element and append it to the list, while combop would concatenate two lists from different partitions together. The initial value z would be an empty set.

    pc.aggregate(Set[Int]())(_ += process(_), _ ++ _)

    Another example is calculating geometric mean from a collection of doubles (one would typically require big doubles for this).

    B

    the type of accumulated results

    z

    the initial value for the accumulated result of the partition - this will typically be the neutral element for the seqop operator (e.g. Nil for list concatenation or 0 for summation)

    seqop

    an operator used to accumulate results within a partition

    combop

    an associative operator used to combine results from different partitions

    Definition Classes
    TraversableOnceGenTraversableOnce
  21. def apply(index: Int): Char

    Return element at index n

    Return element at index n

    returns

    the element of this string at index idx, where 0 indicates the first element.

    Definition Classes
    StringOpsStringLikeSeqLikeGenSeqLike
    Exceptions thrown
    IndexOutOfBoundsException

    if the index is not valid

  22. final def asInstanceOf[T0]: T0

    Cast the receiver object to be of type T0.

    Cast the receiver object to be of type T0.

    Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression 1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expression List(1).asInstanceOf[List[String]] will not. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the requested type.

    returns

    the receiver object.

    Definition Classes
    Any
    Exceptions thrown
    ClassCastException

    if the receiver object is not an instance of the erasure of type T0.

  23. def asParIterable: ParIterable[Char]

    Implicit information
    This member is added by an implicit conversion from StringOps to TraversableOps[Char] performed by method traversable2ops in scala.collection.parallel.
    Definition Classes
    TraversableOps
  24. def asParSeq: ParSeq[Char]

    Implicit information
    This member is added by an implicit conversion from StringOps to TraversableOps[Char] performed by method traversable2ops in scala.collection.parallel.
    Definition Classes
    TraversableOps
  25. def canEqual(that: Any): Boolean

    Method called from equality methods, so that user-defined subclasses can refuse to be equal to other collections of the same kind.

    Method called from equality methods, so that user-defined subclasses can refuse to be equal to other collections of the same kind.

    that

    The object with which this string should be compared

    returns

    true, if this string can possibly equal that, false otherwise. The test takes into consideration only the run-time types of objects but ignores their elements.

    Definition Classes
    IterableLikeEquals
  26. def capitalize: String

    Returns this string with first character converted to upper case

    Returns this string with first character converted to upper case

    Definition Classes
    StringLike
  27. def charAt(arg0: Int): Char

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String → CharSequence
  28. def codePointAt(arg0: Int): Int

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  29. def codePointBefore(arg0: Int): Int

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  30. def codePointCount(arg0: Int, arg1: Int): Int

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  31. def collect[B](pf: PartialFunction[A, B]): String[B]

    [use case] Builds a new collection by applying a partial function to all elements of this string on which the function is defined.

    [use case]

    Builds a new collection by applying a partial function to all elements of this string on which the function is defined.

    B

    the element type of the returned collection.

    pf

    the partial function which filters and maps the string.

    returns

    a new string resulting from applying the given partial function pf to each element on which it is defined and collecting the results. The order of the elements is preserved.

    Definition Classes
    TraversableLikeGenTraversableLike
    Full Signature

    def collect[B, That](pf: PartialFunction[Char, B])(implicit bf: CanBuildFrom[String, B, That]): That

  32. def collectFirst[B](pf: PartialFunction[Char, B]): Option[B]

    Finds the first element of the string for which the given partial function is defined, and applies the partial function to it.

    Finds the first element of the string for which the given partial function is defined, and applies the partial function to it.

    pf

    the partial function

    returns

    an option value containing pf applied to the first value for which it is defined, or None if none exists.

    Definition Classes
    TraversableOnce
    Example:
    1. Seq("a", 1, 5L).collectFirst({ case x: Int => x*10 }) = Some(10)

  33. def combinations(n: Int): Iterator[String]

    Iterates over combinations.

    Iterates over combinations.

    returns

    An Iterator which traverses the possible n-element combinations of this string.

    Definition Classes
    SeqLike
    Example:
    1. "abbbc".combinations(2) = Iterator(ab, ac, bb, bc)

  34. def compare(other: String): Int

    Result of comparing this with operand that.

    Result of comparing this with operand that.

    Implement this method to determine how instances of A will be sorted.

    Returns x where:

    • x < 0 when this < that
    • x == 0 when this == that
    • x > 0 when this > that
    Definition Classes
    StringLikeOrdered
  35. def compareTo(that: String): Int

    Result of comparing this with operand that.

    Result of comparing this with operand that.

    Definition Classes
    Ordered → Comparable
  36. def compareToIgnoreCase(arg0: String): Int

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  37. def concat(arg0: String): String

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  38. def contains(elem: Any): Boolean

    Tests whether this string contains a given value as an element.

    Tests whether this string contains a given value as an element.

    elem

    the element to test.

    returns

    true if this string has an element that is equal (as determined by ==) to elem, false otherwise.

    Definition Classes
    SeqLike
  39. def containsSlice[B](that: GenSeq[B]): Boolean

    Tests whether this string contains a given sequence as a slice.

    Tests whether this string contains a given sequence as a slice.

    that

    the sequence to test

    returns

    true if this string contains a slice with the same elements as that, otherwise false.

    Definition Classes
    SeqLike
  40. def contentEquals(arg0: CharSequence): Boolean

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  41. def contentEquals(arg0: StringBuffer): Boolean

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  42. def copyToArray(xs: Array[A], start: Int, len: Int): Unit

    [use case] Copies elements of this string to an array.

    [use case]

    Copies elements of this string to an array. Fills the given array xs with at most len elements of this string, starting at position start. Copying will stop once either the end of the current string is reached, or the end of the array is reached, or len elements have been copied.

    xs

    the array to fill.

    start

    the starting index.

    len

    the maximal number of elements to copy.

    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeTraversableOnceGenTraversableOnce
    Full Signature

    def copyToArray[B >: Char](xs: Array[B], start: Int, len: Int): Unit

  43. def copyToArray(xs: Array[A]): Unit

    [use case] Copies values of this string to an array.

    [use case]

    Copies values of this string to an array. Fills the given array xs with values of this string. Copying will stop once either the end of the current string is reached, or the end of the array is reached.

    xs

    the array to fill.

    Definition Classes
    TraversableOnceGenTraversableOnce
    Full Signature

    def copyToArray[B >: Char](xs: Array[B]): Unit

  44. def copyToArray(xs: Array[A], start: Int): Unit

    [use case] Copies values of this string to an array.

    [use case]

    Copies values of this string to an array. Fills the given array xs with values of this string, beginning at index start. Copying will stop once either the end of the current string is reached, or the end of the array is reached.

    xs

    the array to fill.

    start

    the starting index.

    Definition Classes
    TraversableOnceGenTraversableOnce
    Full Signature

    def copyToArray[B >: Char](xs: Array[B], start: Int): Unit

  45. def copyToBuffer[B >: Char](dest: Buffer[B]): Unit

    Copies all elements of this string to a buffer.

    Copies all elements of this string to a buffer.

    dest

    The buffer to which elements are copied.

    Definition Classes
    TraversableOnce
  46. def corresponds[B](that: GenSeq[B])(p: (Char, B) ⇒ Boolean): Boolean

    Tests whether every element of this string relates to the corresponding element of another sequence by satisfying a test predicate.

    Tests whether every element of this string relates to the corresponding element of another sequence by satisfying a test predicate.

    B

    the type of the elements of that

    that

    the other sequence

    p

    the test predicate, which relates elements from both sequences

    returns

    true if both sequences have the same length and p(x, y) is true for all corresponding elements x of this string and y of that, otherwise false.

    Definition Classes
    SeqLikeGenSeqLike
  47. def count(p: (Char) ⇒ Boolean): Int

    Counts the number of elements in the string which satisfy a predicate.

    Counts the number of elements in the string which satisfy a predicate.

    p

    the predicate used to test elements.

    returns

    the number of elements satisfying the predicate p.

    Definition Classes
    TraversableOnceGenTraversableOnce
  48. def diff(that: collection.Seq[Char]): String[Char]

    [use case] Computes the multiset difference between this string and another sequence.

    [use case]

    Computes the multiset difference between this string and another sequence.

    that

    the sequence of elements to remove

    returns

    a new string which contains all elements of this string except some of occurrences of elements that also appear in that. If an element value x appears n times in that, then the first n occurrences of x will not form part of the result, but any following occurrences will.

    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def diff[B >: Char](that: GenSeq[B]): String

  49. def distinct: String

    Builds a new string from this string without any duplicate elements.

    Builds a new string from this string without any duplicate elements.

    returns

    A new string which contains the first occurrence of every element of this string.

    Definition Classes
    SeqLikeGenSeqLike
  50. def drop(n: Int): String

    Selects all elements except first n ones.

    Selects all elements except first n ones.

    n

    the number of elements to drop from this string.

    returns

    a string consisting of all elements of this string except the first n ones, or else the empty string, if this string has less than n elements.

    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeGenTraversableLike
  51. def dropRight(n: Int): String

    Selects all elements except last n ones.

    Selects all elements except last n ones.

    n

    The number of elements to take

    returns

    a string consisting of all elements of this string except the last n ones, or else the empty string, if this string has less than n elements.

    Definition Classes
    IndexedSeqOptimizedIterableLike
  52. def dropWhile(p: (Char) ⇒ Boolean): String

    Drops longest prefix of elements that satisfy a predicate.

    Drops longest prefix of elements that satisfy a predicate.

    returns

    the longest suffix of this string whose first element does not satisfy the predicate p.

    Definition Classes
    IndexedSeqOptimizedTraversableLikeGenTraversableLike
  53. def endsWith[B](that: GenSeq[B]): Boolean

    Tests whether this string ends with the given sequence.

    Tests whether this string ends with the given sequence.

    that

    the sequence to test

    returns

    true if this string has that as a suffix, false otherwise.

    Definition Classes
    IndexedSeqOptimizedSeqLikeGenSeqLike
  54. def ensuring(cond: (StringOps) ⇒ Boolean, msg: ⇒ Any): StringOps

    Implicit information
    This member is added by an implicit conversion from StringOps to Ensuring[StringOps] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  55. def ensuring(cond: (StringOps) ⇒ Boolean): StringOps

    Implicit information
    This member is added by an implicit conversion from StringOps to Ensuring[StringOps] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  56. def ensuring(cond: Boolean, msg: ⇒ Any): StringOps

    Implicit information
    This member is added by an implicit conversion from StringOps to Ensuring[StringOps] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  57. def ensuring(cond: Boolean): StringOps

    Implicit information
    This member is added by an implicit conversion from StringOps to Ensuring[StringOps] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  58. def equals(arg0: Any): Boolean

    The equality method for reference types.

    The equality method for reference types. Default implementation delegates to eq.

    See also equals in scala.Any.

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String → AnyRef → Any
  59. def equalsIgnoreCase(arg0: String): Boolean

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  60. def exists(p: (Char) ⇒ Boolean): Boolean

    Tests whether a predicate holds for some of the elements of this string.

    Tests whether a predicate holds for some of the elements of this string.

    p

    the predicate used to test elements.

    returns

    true if the given predicate p holds for some of the elements of this string, otherwise false.

    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeTraversableOnceGenTraversableOnce
  61. def filter(p: (Char) ⇒ Boolean): String

    Selects all elements of this string which satisfy a predicate.

    Selects all elements of this string which satisfy a predicate.

    p

    the predicate used to test elements.

    returns

    a new string consisting of all elements of this string that satisfy the given predicate p. The order of the elements is preserved.

    Definition Classes
    TraversableLikeGenTraversableLike
  62. def filterNot(p: (Char) ⇒ Boolean): String

    Selects all elements of this string which do not satisfy a predicate.

    Selects all elements of this string which do not satisfy a predicate.

    p

    the predicate used to test elements.

    returns

    a new string consisting of all elements of this string that do not satisfy the given predicate p. The order of the elements is preserved.

    Definition Classes
    TraversableLikeGenTraversableLike
  63. def find(p: (Char) ⇒ Boolean): Option[Char]

    Finds the first element of the string satisfying a predicate, if any.

    Finds the first element of the string satisfying a predicate, if any.

    p

    the predicate used to test elements.

    returns

    an option value containing the first element in the string that satisfies p, or None if none exists.

    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeTraversableOnceGenTraversableOnce
  64. def flatMap[B](f: (A) ⇒ GenTraversableOnce[B]): String[B]

    [use case] Builds a new collection by applying a function to all elements of this string and using the elements of the resulting collections.

    [use case]

    Builds a new collection by applying a function to all elements of this string and using the elements of the resulting collections.

    For example:

    def getWords(lines: Seq[String]): Seq[String] = lines flatMap (line => line split "\\W+")

    The type of the resulting collection is guided by the static type of string. This might cause unexpected results sometimes. For example:

    // lettersOf will return a Seq[Char] of likely repeated letters, instead of a Set
    def lettersOf(words: Seq[String]) = words flatMap (word => word.toSet)
    
    // lettersOf will return a Set[Char], not a Seq
    def lettersOf(words: Seq[String]) = words.toSet flatMap (word => word.toSeq)
    
    // xs will be a an Iterable[Int]
    val xs = Map("a" -> List(11,111), "b" -> List(22,222)).flatMap(_._2)
    
    // ys will be a Map[Int, Int]
    val ys = Map("a" -> List(1 -> 11,1 -> 111), "b" -> List(2 -> 22,2 -> 222)).flatMap(_._2)
    B

    the element type of the returned collection.

    f

    the function to apply to each element.

    returns

    a new string resulting from applying the given collection-valued function f to each element of this string and concatenating the results.

    Definition Classes
    TraversableLikeGenTraversableLikeFilterMonadic
    Full Signature

    def flatMap[B, That](f: (Char) ⇒ GenTraversableOnce[B])(implicit bf: CanBuildFrom[String, B, That]): That

  65. def fold[A1 >: Char](z: A1)(op: (A1, A1) ⇒ A1): A1

    Folds the elements of this string using the specified associative binary operator.

    Folds the elements of this string using the specified associative binary operator.

    The order in which operations are performed on elements is unspecified and may be nondeterministic.

    A1

    a type parameter for the binary operator, a supertype of A.

    z

    a neutral element for the fold operation; may be added to the result an arbitrary number of times, and must not change the result (e.g., Nil for list concatenation, 0 for addition, or 1 for multiplication.)

    op

    a binary operator that must be associative

    returns

    the result of applying fold operator op between all the elements and z

    Definition Classes
    TraversableOnceGenTraversableOnce
  66. def foldLeft[B](z: B)(op: (B, Char) ⇒ B): B

    Applies a binary operator to a start value and all elements of this string, going left to right.

    Applies a binary operator to a start value and all elements of this string, going left to right.

    B

    the result type of the binary operator.

    z

    the start value.

    op

    the binary operator.

    returns

    the result of inserting op between consecutive elements of this string, going left to right with the start value z on the left:

    op(...op(z, x_1), x_2, ..., x_n)

    where x1, ..., xn are the elements of this string.

    Definition Classes
    IndexedSeqOptimizedTraversableOnceGenTraversableOnce
  67. def foldRight[B](z: B)(op: (Char, B) ⇒ B): B

    Applies a binary operator to all elements of this string and a start value, going right to left.

    Applies a binary operator to all elements of this string and a start value, going right to left.

    B

    the result type of the binary operator.

    z

    the start value.

    op

    the binary operator.

    returns

    the result of inserting op between consecutive elements of this string, going right to left with the start value z on the right:

    op(x_1, op(x_2, ... op(x_n, z)...))

    where x1, ..., xn are the elements of this string.

    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableOnceGenTraversableOnce
  68. def forall(p: (Char) ⇒ Boolean): Boolean

    Tests whether a predicate holds for all elements of this string.

    Tests whether a predicate holds for all elements of this string.

    p

    the predicate used to test elements.

    returns

    true if the given predicate p holds for all elements of this string, otherwise false.

    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeTraversableOnceGenTraversableOnce
  69. def foreach(f: (A) ⇒ Unit): Unit

    [use case] Applies a function f to all elements of this string.

    [use case]

    Applies a function f to all elements of this string.

    Note: this method underlies the implementation of most other bulk operations. Subclasses should re-implement this method if a more efficient implementation exists.

    f

    the function that is applied for its side-effect to every element. The result of function f is discarded.

    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeGenTraversableLikeTraversableOnceGenTraversableOnceFilterMonadic
    Full Signature

    def foreach[U](f: (Char) ⇒ U): Unit

  70. def format(args: Any*): String

    Uses the underlying string as a pattern (in a fashion similar to printf in C), and uses the supplied arguments to fill in the holes.

    Uses the underlying string as a pattern (in a fashion similar to printf in C), and uses the supplied arguments to fill in the holes.

    The interpretation of the formatting patterns is described in `java.util.Formatter`, with the addition that classes deriving from ScalaNumber (such as scala.BigInt and scala.BigDecimal) are unwrapped to pass a type which Formatter understands.

    args

    the arguments used to instantiating the pattern.

    Definition Classes
    StringLike
    Exceptions thrown
    `java.lang.IllegalArgumentException`

  71. def formatLocal(l: Locale, args: Any*): String

    Like format(args*) but takes an initial Locale parameter which influences formatting as in java.lang.String's format.

    Like format(args*) but takes an initial Locale parameter which influences formatting as in java.lang.String's format.

    The interpretation of the formatting patterns is described in `java.util.Formatter`, with the addition that classes deriving from ScalaNumber (such as scala.BigInt and scala.BigDecimal) are unwrapped to pass a type which Formatter understands.

    l

    an instance of java.util.Locale

    args

    the arguments used to instantiating the pattern.

    Definition Classes
    StringLike
    Exceptions thrown
    `java.lang.IllegalArgumentException`

  72. def formatted(fmtstr: String): String

    Returns string formatted according to given format string.

    Returns string formatted according to given format string. Format strings are as for String.format (@see java.lang.String.format).

    Implicit information
    This member is added by an implicit conversion from StringOps to StringFormat performed by method any2stringfmt in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  73. def getBytes(): Array[Byte]

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  74. def getBytes(arg0: Charset): Array[Byte]

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  75. def getBytes(arg0: String): Array[Byte]

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
    Annotations
    @throws( ... )
  76. def getChars(arg0: Int, arg1: Int, arg2: Array[Char], arg3: Int): Unit

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  77. def getClass(): Class[_ <: AnyVal]

    Returns the runtime class representation of the object.

    Returns the runtime class representation of the object.

    returns

    a class object corresponding to the runtime type of the receiver.

    Definition Classes
    AnyValAny
  78. def groupBy[K](f: (Char) ⇒ K): Map[K, String]

    Partitions this string into a map of strings according to some discriminator function.

    Partitions this string into a map of strings according to some discriminator function.

    Note: this method is not re-implemented by views. This means when applied to a view it will always force the view and return a new string.

    K

    the type of keys returned by the discriminator function.

    f

    the discriminator function.

    returns

    A map from keys to strings such that the following invariant holds:

    (xs partition f)(k) = xs filter (x => f(x) == k)

    That is, every key k is bound to a string of those elements x for which f(x) equals k.

    Definition Classes
    TraversableLikeGenTraversableLike
  79. def grouped(size: Int): Iterator[String]

    Partitions elements in fixed size strings.

    Partitions elements in fixed size strings.

    size

    the number of elements per group

    returns

    An iterator producing strings of size size, except the last will be truncated if the elements don't divide evenly.

    Definition Classes
    IterableLike
    See also

    scala.collection.Iterator, method grouped

  80. def hasDefiniteSize: Boolean

    Tests whether this string is known to have a finite size.

    Tests whether this string is known to have a finite size. All strict collections are known to have finite size. For a non-strict collection such as Stream, the predicate returns true if all elements have been computed. It returns false if the stream is not yet evaluated to the end.

    Note: many collection methods will not work on collections of infinite sizes.

    returns

    true if this collection is known to have finite size, false otherwise.

    Definition Classes
    TraversableLikeTraversableOnceGenTraversableOnce
  81. def hashCode(): Int

    The hashCode method for reference types.

    The hashCode method for reference types. See hashCode in scala.Any.

    returns

    the hash code value for this object.

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String → AnyRef → Any
  82. def head: Char

    Selects the first element of this string.

    Selects the first element of this string.

    returns

    the first element of this string.

    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeGenTraversableLike
    Exceptions thrown
    `NoSuchElementException`

    if the string is empty.

  83. def headOption: Option[Char]

    Optionally selects the first element.

    Optionally selects the first element.

    returns

    the first element of this string if it is nonempty, None if it is empty.

    Definition Classes
    TraversableLikeGenTraversableLike
  84. def ifParSeq[R](isbody: (ParSeq[Char]) ⇒ R): (TraversableOps[Char])#Otherwise[R]

    Implicit information
    This member is added by an implicit conversion from StringOps to TraversableOps[Char] performed by method traversable2ops in scala.collection.parallel.
    Definition Classes
    TraversableOps
  85. def indexOf(elem: Char, from: Int): Int

    [use case] Finds index of first occurrence of some value in this string after or at some start index.

    [use case]

    Finds index of first occurrence of some value in this string after or at some start index.

    elem

    the element value to search for.

    from

    the start index

    returns

    the index >= from of the first element of this string that is equal (as determined by ==) to elem, or -1, if none exists.

    Definition Classes
    GenSeqLike
    Full Signature

    def indexOf[B >: Char](elem: B, from: Int): Int

  86. def indexOf(elem: Char): Int

    [use case] Finds index of first occurrence of some value in this string.

    [use case]

    Finds index of first occurrence of some value in this string.

    elem

    the element value to search for.

    returns

    the index of the first element of this string that is equal (as determined by ==) to elem, or -1, if none exists.

    Definition Classes
    GenSeqLike
    Full Signature

    def indexOf[B >: Char](elem: B): Int

  87. def indexOfSlice[B >: Char](that: GenSeq[B], from: Int): Int

    Finds first index after or at a start index where this string contains a given sequence as a slice.

    Finds first index after or at a start index where this string contains a given sequence as a slice.

    that

    the sequence to test

    from

    the start index

    returns

    the first index >= from such that the elements of this string starting at this index match the elements of sequence that, or -1 of no such subsequence exists.

    Definition Classes
    SeqLike
  88. def indexOfSlice[B >: Char](that: GenSeq[B]): Int

    Finds first index where this string contains a given sequence as a slice.

    Finds first index where this string contains a given sequence as a slice.

    that

    the sequence to test

    returns

    the first index such that the elements of this string starting at this index match the elements of sequence that, or -1 of no such subsequence exists.

    Definition Classes
    SeqLike
  89. def indexWhere(p: (Char) ⇒ Boolean, from: Int): Int

    Finds index of the first element satisfying some predicate after or at some start index.

    Finds index of the first element satisfying some predicate after or at some start index.

    p

    the predicate used to test elements.

    from

    the start index

    returns

    the index >= from of the first element of this string that satisfies the predicate p, or -1, if none exists.

    Definition Classes
    IndexedSeqOptimizedSeqLikeGenSeqLike
  90. def indexWhere(p: (Char) ⇒ Boolean): Int

    Finds index of first element satisfying some predicate.

    Finds index of first element satisfying some predicate.

    p

    the predicate used to test elements.

    returns

    the index of the first element of this string that satisfies the predicate p, or -1, if none exists.

    Definition Classes
    GenSeqLike
  91. def indices: Range

    Produces the range of all indices of this sequence.

    Produces the range of all indices of this sequence.

    returns

    a Range value from 0 to one less than the length of this string.

    Definition Classes
    SeqLike
  92. def init: String

    Selects all elements except the last.

    Selects all elements except the last.

    returns

    a string consisting of all elements of this string except the last one.

    Definition Classes
    IndexedSeqOptimizedTraversableLikeGenTraversableLike
    Exceptions thrown
    `UnsupportedOperationException`

    if the string is empty.

  93. def inits: Iterator[String]

    Iterates over the inits of this string.

    Iterates over the inits of this string. The first value will be this string and the final one will be an empty string, with the intervening values the results of successive applications of init.

    returns

    an iterator over all the inits of this string

    Definition Classes
    TraversableLike
    Example:
    1. List(1,2,3).inits = Iterator(List(1,2,3), List(1,2), List(1), Nil)

  94. def intern(): String

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  95. def intersect(that: collection.Seq[Char]): String[Char]

    [use case] Computes the multiset intersection between this string and another sequence.

    [use case]

    Computes the multiset intersection between this string and another sequence.

    that

    the sequence of elements to intersect with.

    returns

    a new string which contains all elements of this string which also appear in that. If an element value x appears n times in that, then the first n occurrences of x will be retained in the result, but any following occurrences will be omitted.

    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def intersect[B >: Char](that: GenSeq[B]): String

  96. def isDefinedAt(idx: Int): Boolean

    Tests whether this string contains given index.

    Tests whether this string contains given index.

    The implementations of methods apply and isDefinedAt turn a Seq[A] into a PartialFunction[Int, A].

    idx

    the index to test

    returns

    true if this string contains an element at position idx, false otherwise.

    Definition Classes
    GenSeqLike
  97. def isEmpty: Boolean

    Tests whether this string is empty.

    Tests whether this string is empty.

    returns

    true if the string contain no elements, false otherwise.

    Definition Classes
    IndexedSeqOptimizedSeqLikeIterableLikeTraversableLikeTraversableOnceGenTraversableOnce
  98. final def isInstanceOf[T0]: Boolean

    Test whether the dynamic type of the receiver object is T0.

    Test whether the dynamic type of the receiver object is T0.

    Note that the result of the test is modulo Scala's erasure semantics. Therefore the expression 1.isInstanceOf[String] will return false, while the expression List(1).isInstanceOf[List[String]] will return true. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the specified type.

    returns

    true if the receiver object is an instance of erasure of type T0; false otherwise.

    Definition Classes
    Any
  99. def isParIterable: Boolean

    Implicit information
    This member is added by an implicit conversion from StringOps to TraversableOps[Char] performed by method traversable2ops in scala.collection.parallel.
    Definition Classes
    TraversableOps
  100. def isParSeq: Boolean

    Implicit information
    This member is added by an implicit conversion from StringOps to TraversableOps[Char] performed by method traversable2ops in scala.collection.parallel.
    Definition Classes
    TraversableOps
  101. def isParallel: Boolean

    Implicit information
    This member is added by an implicit conversion from StringOps to TraversableOps[Char] performed by method traversable2ops in scala.collection.parallel.
    Definition Classes
    TraversableOps
  102. final def isTraversableAgain: Boolean

    Tests whether this string can be repeatedly traversed.

    Tests whether this string can be repeatedly traversed.

    returns

    true

    Definition Classes
    TraversableLikeGenTraversableLikeGenTraversableOnce
  103. def iterator: Iterator[Char]

    Creates a new iterator over all elements contained in this iterable object.

    Creates a new iterator over all elements contained in this iterable object.

    returns

    the new iterator

    Definition Classes
    IndexedSeqLikeIterableLikeGenIterableLike
  104. def last: Char

    Selects the last element.

    Selects the last element.

    returns

    The last element of this string.

    Definition Classes
    IndexedSeqOptimizedTraversableLikeGenTraversableLike
    Exceptions thrown
    NoSuchElementException

    If the string is empty.

  105. def lastIndexOf(elem: Char, end: Int): Int

    [use case] Finds index of last occurrence of some value in this string before or at a given end index.

    [use case]

    Finds index of last occurrence of some value in this string before or at a given end index.

    elem

    the element value to search for.

    end

    the end index.

    returns

    the index <= end of the last element of this string that is equal (as determined by ==) to elem, or -1, if none exists.

    Definition Classes
    GenSeqLike
    Full Signature

    def lastIndexOf[B >: Char](elem: B, end: Int): Int

  106. def lastIndexOf(elem: Char): Int

    [use case] Finds index of last occurrence of some value in this string.

    [use case]

    Finds index of last occurrence of some value in this string.

    elem

    the element value to search for.

    returns

    the index of the last element of this string that is equal (as determined by ==) to elem, or -1, if none exists.

    Definition Classes
    GenSeqLike
    Full Signature

    def lastIndexOf[B >: Char](elem: B): Int

  107. def lastIndexOfSlice[B >: Char](that: GenSeq[B], end: Int): Int

    Finds last index before or at a given end index where this string contains a given sequence as a slice.

    Finds last index before or at a given end index where this string contains a given sequence as a slice.

    that

    the sequence to test

    end

    the end index

    returns

    the last index <= end such that the elements of this string starting at this index match the elements of sequence that, or -1 of no such subsequence exists.

    Definition Classes
    SeqLike
  108. def lastIndexOfSlice[B >: Char](that: GenSeq[B]): Int

    Finds last index where this string contains a given sequence as a slice.

    Finds last index where this string contains a given sequence as a slice.

    that

    the sequence to test

    returns

    the last index such that the elements of this string starting a this index match the elements of sequence that, or -1 of no such subsequence exists.

    Definition Classes
    SeqLike
  109. def lastIndexWhere(p: (Char) ⇒ Boolean, end: Int): Int

    Finds index of last element satisfying some predicate before or at given end index.

    Finds index of last element satisfying some predicate before or at given end index.

    p

    the predicate used to test elements.

    returns

    the index <= end of the last element of this string that satisfies the predicate p, or -1, if none exists.

    Definition Classes
    IndexedSeqOptimizedSeqLikeGenSeqLike
  110. def lastIndexWhere(p: (Char) ⇒ Boolean): Int

    Finds index of last element satisfying some predicate.

    Finds index of last element satisfying some predicate.

    p

    the predicate used to test elements.

    returns

    the index of the last element of this string that satisfies the predicate p, or -1, if none exists.

    Definition Classes
    GenSeqLike
  111. def lastOption: Option[Char]

    Optionally selects the last element.

    Optionally selects the last element.

    returns

    the last element of this string$ if it is nonempty, None if it is empty.

    Definition Classes
    TraversableLikeGenTraversableLike
  112. def length: Int

    The length of the string.

    The length of the string.

    Note: xs.length and xs.size yield the same result.

    returns

    the number of elements in this string.

    Definition Classes
    StringOpsStringLikeSeqLikeGenSeqLike
  113. def lengthCompare(len: Int): Int

    Compares the length of this string to a test value.

    Compares the length of this string to a test value.

    len

    the test value that gets compared with the length.

    returns

    A value x where

    x <  0       if this.length <  len
    x == 0       if this.length == len
    x >  0       if this.length >  len

    The method as implemented here does not call length directly; its running time is O(length min len) instead of O(length). The method should be overwritten if computing length is cheap.

    Definition Classes
    IndexedSeqOptimizedSeqLike
  114. def lines: Iterator[String]

    Return all lines in this string in an iterator, excluding trailing line end characters, i.

    Return all lines in this string in an iterator, excluding trailing line end characters, i.e. apply .stripLineEnd to all lines returned by linesWithSeparators.

    Definition Classes
    StringLike
  115. def linesIterator: Iterator[String]

    Return all lines in this string in an iterator, excluding trailing line end characters, i.

    Return all lines in this string in an iterator, excluding trailing line end characters, i.e. apply .stripLineEnd to all lines returned by linesWithSeparators.

    Definition Classes
    StringLike
  116. def linesWithSeparators: Iterator[String]

    Return all lines in this string in an iterator, including trailing line end characters.

    Return all lines in this string in an iterator, including trailing line end characters.

    The number of strings returned is one greater than the number of line end characters in this string. For an empty string, a single empty line is returned. A line end character is one of

    • LF - line feed (0x0A hex)
    • FF - form feed (0x0C hex)
    Definition Classes
    StringLike
  117. def map[B](f: (A) ⇒ B): String[B]

    [use case] Builds a new collection by applying a function to all elements of this string.

    [use case]

    Builds a new collection by applying a function to all elements of this string.

    B

    the element type of the returned collection.

    f

    the function to apply to each element.

    returns

    a new string resulting from applying the given function f to each element of this string and collecting the results.

    Definition Classes
    TraversableLikeGenTraversableLikeFilterMonadic
    Full Signature

    def map[B, That](f: (Char) ⇒ B)(implicit bf: CanBuildFrom[String, B, That]): That

  118. def matches(arg0: String): Boolean

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  119. def max: A

    [use case] Finds the largest element.

    [use case]

    Finds the largest element.

    returns

    the largest element of this string.

    Definition Classes
    TraversableOnceGenTraversableOnce
    Full Signature

    def max[B >: Char](implicit cmp: Ordering[B]): Char

  120. def maxBy[B](f: (Char) ⇒ B)(implicit cmp: Ordering[B]): Char

    Definition Classes
    TraversableOnceGenTraversableOnce
  121. def min: A

    [use case] Finds the smallest element.

    [use case]

    Finds the smallest element.

    returns

    the smallest element of this string

    Definition Classes
    TraversableOnceGenTraversableOnce
    Full Signature

    def min[B >: Char](implicit cmp: Ordering[B]): Char

  122. def minBy[B](f: (Char) ⇒ B)(implicit cmp: Ordering[B]): Char

    Definition Classes
    TraversableOnceGenTraversableOnce
  123. def mkString: String

    Displays all elements of this string in a string.

    Displays all elements of this string in a string.

    returns

    a string representation of this string. In the resulting string the string representations (w.r.t. the method toString) of all elements of this string follow each other without any separator string.

    Definition Classes
    StringLikeTraversableOnceGenTraversableOnce
  124. def mkString(sep: String): String

    Displays all elements of this string in a string using a separator string.

    Displays all elements of this string in a string using a separator string.

    sep

    the separator string.

    returns

    a string representation of this string. In the resulting string the string representations (w.r.t. the method toString) of all elements of this string are separated by the string sep.

    Definition Classes
    TraversableOnceGenTraversableOnce
    Example:
    1. List(1, 2, 3).mkString("|") = "1|2|3"

  125. def mkString(start: String, sep: String, end: String): String

    Displays all elements of this string in a string using start, end, and separator strings.

    Displays all elements of this string in a string using start, end, and separator strings.

    start

    the starting string.

    sep

    the separator string.

    end

    the ending string.

    returns

    a string representation of this string. The resulting string begins with the string start and ends with the string end. Inside, the string representations (w.r.t. the method toString) of all elements of this string are separated by the string sep.

    Definition Classes
    TraversableOnceGenTraversableOnce
    Example:
    1. List(1, 2, 3).mkString("(", "; ", ")") = "(1; 2; 3)"

  126. def newBuilder: mutable.StringBuilder

    Creates a string builder buffer as builder for this class

    Creates a string builder buffer as builder for this class

    Attributes
    protected[this]
    Definition Classes
    StringOpsStringLikeTraversableLikeHasNewBuilder
  127. def nonEmpty: Boolean

    Tests whether the string is not empty.

    Tests whether the string is not empty.

    returns

    true if the string contains at least one element, false otherwise.

    Definition Classes
    TraversableOnceGenTraversableOnce
  128. def offsetByCodePoints(arg0: Int, arg1: Int): Int

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  129. def padTo(len: Int, elem: A): String[A]

    [use case] A copy of this string with an element value appended until a given target length is reached.

    [use case]

    A copy of this string with an element value appended until a given target length is reached.

    len

    the target length

    elem

    the padding value

    returns

    a new string consisting of all elements of this string followed by the minimal number of occurrences of elem so that the resulting string has a length of at least len.

    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def padTo[B >: Char, That](len: Int, elem: B)(implicit bf: CanBuildFrom[String, B, That]): That

  130. def par: ParSeq[Char]

    Returns a parallel implementation of this collection.

    Returns a parallel implementation of this collection.

    For most collection types, this method creates a new parallel collection by copying all the elements. For these collection, par takes linear time. Mutable collections in this category do not produce a mutable parallel collection that has the same underlying dataset, so changes in one collection will not be reflected in the other one.

    Specific collections (e.g. ParArray or mutable.ParHashMap) override this default behaviour by creating a parallel collection which shares the same underlying dataset. For these collections, par takes constant or sublinear time.

    All parallel collections return a reference to themselves.

    returns

    a parallel implementation of this collection

    Definition Classes
    Parallelizable
  131. def parCombiner: Combiner[Char, ParSeq[Char]]

    The default par implementation uses the combiner provided by this method to create a new parallel collection.

    The default par implementation uses the combiner provided by this method to create a new parallel collection.

    returns

    a combiner for the parallel collection of type ParRepr

    Attributes
    protected[this]
    Definition Classes
    SeqLikeTraversableLikeParallelizable
  132. def partition(p: (Char) ⇒ Boolean): (String, String)

    Partitions this string in two strings according to a predicate.

    Partitions this string in two strings according to a predicate.

    p

    the predicate on which to partition.

    returns

    a pair of strings: the first string consists of all elements that satisfy the predicate p and the second string consists of all elements that don't. The relative order of the elements in the resulting strings is the same as in the original string.

    Definition Classes
    TraversableLikeGenTraversableLike
  133. def patch(from: Int, that: GenSeq[A], replaced: Int): String[A]

    [use case] Produces a new string where a slice of elements in this string is replaced by another sequence.

    [use case]

    Produces a new string where a slice of elements in this string is replaced by another sequence.

    from

    the index of the first replaced element

    replaced

    the number of elements to drop in the original string

    returns

    a new string consisting of all elements of this string except that replaced elements starting from from are replaced by patch.

    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def patch[B >: Char, That](from: Int, patch: GenSeq[B], replaced: Int)(implicit bf: CanBuildFrom[String, B, That]): That

  134. def permutations: Iterator[String]

    Iterates over distinct permutations.

    Iterates over distinct permutations.

    returns

    An Iterator which traverses the distinct permutations of this string.

    Definition Classes
    SeqLike
    Example:
    1. "abb".permutations = Iterator(abb, bab, bba)

  135. def prefixLength(p: (Char) ⇒ Boolean): Int

    Returns the length of the longest prefix whose elements all satisfy some predicate.

    Returns the length of the longest prefix whose elements all satisfy some predicate.

    p

    the predicate used to test elements.

    returns

    the length of the longest prefix of this string such that every element of the segment satisfies the predicate p.

    Definition Classes
    GenSeqLike
  136. def product: A

    [use case] Multiplies up the elements of this collection.

    [use case]

    Multiplies up the elements of this collection.

    returns

    the product of all elements in this string of numbers of type Int. Instead of Int, any other type T with an implicit Numeric[T] implementation can be used as element type of the string and as result type of product. Examples of such types are: Long, Float, Double, BigInt.

    Definition Classes
    TraversableOnceGenTraversableOnce
    Full Signature

    def product[B >: Char](implicit num: Numeric[B]): B

  137. def r(groupNames: String*): Regex

    You can follow a string with .r(g1, ... , gn), turning it into a Regex, with group names g1 through gn.

    You can follow a string with .r(g1, ... , gn), turning it into a Regex, with group names g1 through gn.

    """(\d\d)-(\d\d)-(\d\d\d\d)""".r("month", "day", "year") matches dates and provides its subcomponents through groups named "month", "day" and "year".

    groupNames

    The names of the groups in the pattern, in the order they appear.

    Definition Classes
    StringLike
  138. def r: Regex

    You can follow a string with .r, turning it into a Regex.

    You can follow a string with .r, turning it into a Regex. E.g.

    """A\w*""".r is the regular expression for identifiers starting with A.

    Definition Classes
    StringLike
  139. def reduce[A1 >: Char](op: (A1, A1) ⇒ A1): A1

    Reduces the elements of this string using the specified associative binary operator.

    Reduces the elements of this string using the specified associative binary operator.

    The order in which operations are performed on elements is unspecified and may be nondeterministic.

    A1

    A type parameter for the binary operator, a supertype of A.

    op

    A binary operator that must be associative.

    returns

    The result of applying reduce operator op between all the elements if the string is nonempty.

    Definition Classes
    TraversableOnceGenTraversableOnce
    Exceptions thrown
    UnsupportedOperationException

    if this string is empty.

  140. def reduceLeft[B >: Char](op: (B, Char) ⇒ B): B

    Applies a binary operator to all elements of this string, going left to right.

    Applies a binary operator to all elements of this string, going left to right.

    B

    the result type of the binary operator.

    op

    the binary operator.

    returns

    the result of inserting op between consecutive elements of this string, going left to right:

    op( op( ... op(x_1, x_2) ..., x_{n-1}), x_n)

    where x1, ..., xn are the elements of this string.

    Definition Classes
    IndexedSeqOptimizedTraversableOnce
    Exceptions thrown
    `UnsupportedOperationException`

    if this string is empty.

  141. def reduceLeftOption[B >: Char](op: (B, Char) ⇒ B): Option[B]

    Optionally applies a binary operator to all elements of this string, going left to right.

    Optionally applies a binary operator to all elements of this string, going left to right.

    B

    the result type of the binary operator.

    op

    the binary operator.

    returns

    an option value containing the result of reduceLeft(op) is this string is nonempty, None otherwise.

    Definition Classes
    TraversableOnceGenTraversableOnce
  142. def reduceOption[A1 >: Char](op: (A1, A1) ⇒ A1): Option[A1]

    Reduces the elements of this string, if any, using the specified associative binary operator.

    Reduces the elements of this string, if any, using the specified associative binary operator.

    The order in which operations are performed on elements is unspecified and may be nondeterministic.

    A1

    A type parameter for the binary operator, a supertype of A.

    op

    A binary operator that must be associative.

    returns

    An option value containing result of applying reduce operator op between all the elements if the collection is nonempty, and None otherwise.

    Definition Classes
    TraversableOnceGenTraversableOnce
  143. def reduceRight[B >: Char](op: (Char, B) ⇒ B): B

    Applies a binary operator to all elements of this string, going right to left.

    Applies a binary operator to all elements of this string, going right to left.

    B

    the result type of the binary operator.

    op

    the binary operator.

    returns

    the result of inserting op between consecutive elements of this string, going right to left:

    op(x_1, op(x_2, ..., op(x_{n-1}, x_n)...))

    where x1, ..., xn are the elements of this string.

    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableOnceGenTraversableOnce
    Exceptions thrown
    `UnsupportedOperationException`

    if this string is empty.

  144. def reduceRightOption[B >: Char](op: (Char, B) ⇒ B): Option[B]

    Optionally applies a binary operator to all elements of this string, going right to left.

    Optionally applies a binary operator to all elements of this string, going right to left.

    B

    the result type of the binary operator.

    op

    the binary operator.

    returns

    an option value containing the result of reduceRight(op) is this string is nonempty, None otherwise.

    Definition Classes
    TraversableOnceGenTraversableOnce
  145. def regionMatches(arg0: Boolean, arg1: Int, arg2: String, arg3: Int, arg4: Int): Boolean

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  146. def regionMatches(arg0: Int, arg1: String, arg2: Int, arg3: Int): Boolean

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  147. def replace(arg0: CharSequence, arg1: CharSequence): String

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  148. def replace(arg0: Char, arg1: Char): String

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  149. def replaceAll(arg0: String, arg1: String): String

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  150. def replaceAllLiterally(literal: String, replacement: String): String

    Replace all literal occurrences of literal with the string replacement.

    Replace all literal occurrences of literal with the string replacement. This is equivalent to java.lang.String#replaceAll except that both arguments are appropriately quoted to avoid being interpreted as metacharacters.

    literal

    the string which should be replaced everywhere it occurs

    replacement

    the replacement string

    returns

    the resulting string

    Definition Classes
    StringLike
  151. def replaceFirst(arg0: String, arg1: String): String

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  152. val repr: String

    the actual representation of this string operations object.

    the actual representation of this string operations object.

    Definition Classes
    StringOpsTraversableLikeGenTraversableLike
  153. def reverse: String

    Returns new string wih elements in reversed order.

    Returns new string wih elements in reversed order.

    returns

    A new string with all elements of this string in reversed order.

    Definition Classes
    IndexedSeqOptimizedSeqLikeGenSeqLike
  154. def reverseIterator: Iterator[Char]

    An iterator yielding elements in reversed order.

    An iterator yielding elements in reversed order.

    Note: xs.reverseIterator is the same as xs.reverse.iterator but might be more efficient.

    returns

    an iterator yielding the elements of this string in reversed order

    Definition Classes
    IndexedSeqOptimizedSeqLike
  155. def reverseMap[B](f: (A) ⇒ B): String[B]

    [use case] Builds a new collection by applying a function to all elements of this string and collecting the results in reversed order.

    [use case]

    Builds a new collection by applying a function to all elements of this string and collecting the results in reversed order.

    Note: xs.reverseMap(f) is the same as xs.reverse.map(f) but might be more efficient.

    B

    the element type of the returned collection.

    f

    the function to apply to each element.

    returns

    a new string resulting from applying the given function f to each element of this string and collecting the results in reversed order.

    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def reverseMap[B, That](f: (Char) ⇒ B)(implicit bf: CanBuildFrom[String, B, That]): That

  156. def reversed: scala.List[Char]

    Attributes
    protected[this]
    Definition Classes
    TraversableOnce
  157. def sameElements(that: GenIterable[A]): Boolean

    [use case] Checks if the other iterable collection contains the same elements in the same order as this string.

    [use case]

    Checks if the other iterable collection contains the same elements in the same order as this string.

    that

    the collection to compare with.

    returns

    true, if both collections contain the same elements in the same order, false otherwise.

    Definition Classes
    IndexedSeqOptimizedIterableLikeGenIterableLike
    Full Signature

    def sameElements[B >: Char](that: GenIterable[B]): Boolean

  158. def scan[B >: Char, That](z: B)(op: (B, B) ⇒ B)(implicit cbf: CanBuildFrom[String, B, That]): That

    Computes a prefix scan of the elements of the collection.

    Computes a prefix scan of the elements of the collection.

    Note: The neutral element z may be applied more than once.

    B

    element type of the resulting collection

    That

    type of the resulting collection

    z

    neutral element for the operator op

    op

    the associative operator for the scan

    cbf

    combiner factory which provides a combiner

    returns

    a new string containing the prefix scan of the elements in this string

    Definition Classes
    TraversableLikeGenTraversableLike
  159. def scanLeft[B, That](z: B)(op: (B, Char) ⇒ B)(implicit bf: CanBuildFrom[String, B, That]): That

    Produces a collection containing cumulative results of applying the operator going left to right.

    Produces a collection containing cumulative results of applying the operator going left to right.

    B

    the type of the elements in the resulting collection

    That

    the actual type of the resulting collection

    z

    the initial value

    op

    the binary operator applied to the intermediate result and the element

    bf

    an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and the new element type B.

    returns

    collection with intermediate results

    Definition Classes
    TraversableLikeGenTraversableLike
  160. def scanRight[B, That](z: B)(op: (Char, B) ⇒ B)(implicit bf: CanBuildFrom[String, B, That]): That

    Produces a collection containing cumulative results of applying the operator going right to left.

    Produces a collection containing cumulative results of applying the operator going right to left. The head of the collection is the last cumulative result.

    Example:

    List(1, 2, 3, 4).scanRight(0)(_ + _) == List(10, 9, 7, 4, 0)
    B

    the type of the elements in the resulting collection

    That

    the actual type of the resulting collection

    z

    the initial value

    op

    the binary operator applied to the intermediate result and the element

    bf

    an implicit value of class CanBuildFrom which determines the result class That from the current representation type Repr and the new element type B.

    returns

    collection with intermediate results

    Definition Classes
    TraversableLikeGenTraversableLike
    Annotations
    @migration
    Migration

    (Changed in version 2.9.0) The behavior of scanRight has changed. The previous behavior can be reproduced with scanRight.reverse.

  161. def segmentLength(p: (Char) ⇒ Boolean, from: Int): Int

    Computes length of longest segment whose elements all satisfy some predicate.

    Computes length of longest segment whose elements all satisfy some predicate.

    p

    the predicate used to test elements.

    from

    the index where the search starts.

    returns

    the length of the longest segment of this string starting from index from such that every element of the segment satisfies the predicate p.

    Definition Classes
    IndexedSeqOptimizedSeqLikeGenSeqLike
  162. def seq: WrappedString

    A version of this collection with all of the operations implemented sequentially (i.

    A version of this collection with all of the operations implemented sequentially (i.e. in a single-threaded manner).

    This method returns a reference to this collection. In parallel collections, it is redefined to return a sequential implementation of this collection. In both cases, it has O(1) complexity.

    returns

    a sequential view of the collection.

    Definition Classes
    StringOpsIndexedSeqLikeGenSeqLikeParallelizableTraversableOnceGenTraversableOnce
  163. def size: Int

    The size of this string, equivalent to length.

    The size of this string, equivalent to length.

    returns

    the number of elements in this string.

    Definition Classes
    SeqLikeGenTraversableLikeTraversableOnceGenTraversableOnce
  164. def slice(from: Int, until: Int): String

    Selects an interval of elements.

    Selects an interval of elements. The returned collection is made up of all elements x which satisfy the invariant:

    from <= indexOf(x) < until
    returns

    a string containing the elements greater than or equal to index from extending up to (but not including) index until of this string.

    Definition Classes
    StringOpsStringLikeIndexedSeqOptimizedIterableLikeTraversableLikeGenTraversableLike
  165. def sliding(size: Int, step: Int): Iterator[String]

    Groups elements in fixed size blocks by passing a "sliding window" over them (as opposed to partitioning them, as is done in grouped.

    Groups elements in fixed size blocks by passing a "sliding window" over them (as opposed to partitioning them, as is done in grouped.)

    size

    the number of elements per group

    step

    the distance between the first elements of successive groups (defaults to 1)

    returns

    An iterator producing strings of size size, except the last and the only element will be truncated if there are fewer elements than size.

    Definition Classes
    IterableLike
    See also

    scala.collection.Iterator, method sliding

  166. def sliding(size: Int): Iterator[String]

    Groups elements in fixed size blocks by passing a "sliding window" over them (as opposed to partitioning them, as is done in grouped.

    Groups elements in fixed size blocks by passing a "sliding window" over them (as opposed to partitioning them, as is done in grouped.)

    size

    the number of elements per group

    returns

    An iterator producing strings of size size, except the last and the only element will be truncated if there are fewer elements than size.

    Definition Classes
    IterableLike
    See also

    scala.collection.Iterator, method sliding

  167. def sortBy[B](f: (Char) ⇒ B)(implicit ord: math.Ordering[B]): String

    Sorts this String according to the Ordering which results from transforming an implicitly given Ordering with a transformation function.

    Sorts this String according to the Ordering which results from transforming an implicitly given Ordering with a transformation function.

    B

    the target type of the transformation f, and the type where the ordering ord is defined.

    f

    the transformation function mapping elements to some other domain B.

    ord

    the ordering assumed on domain B.

    returns

    a string consisting of the elements of this string sorted according to the ordering where x < y if ord.lt(f(x), f(y)).

    Definition Classes
    SeqLike
    Example:
    1. val words = "The quick brown fox jumped over the lazy dog".split(' ')
      // this works because scala.Ordering will implicitly provide an Ordering[Tuple2[Int, Char]]
      words.sortBy(x => (x.length, x.head))
      res0: Array[String] = Array(The, dog, fox, the, lazy, over, brown, quick, jumped)
    See also

    scala.math.Ordering

  168. def sortWith(lt: (Char, Char) ⇒ Boolean): String

    Sorts this string according to a comparison function.

    Sorts this string according to a comparison function.

    The sort is stable. That is, elements that are equal (as determined by lt) appear in the same order in the sorted sequence as in the original.

    lt

    the comparison function which tests whether its first argument precedes its second argument in the desired ordering.

    returns

    a string consisting of the elements of this string sorted according to the comparison function lt.

    Definition Classes
    SeqLike
    Example:
    1. List("Steve", "Tom", "John", "Bob").sortWith(_.compareTo(_) < 0) =
      List("Bob", "John", "Steve", "Tom")
  169. def sorted[B >: Char](implicit ord: math.Ordering[B]): String

    Sorts this string according to an Ordering.

    Sorts this string according to an Ordering.

    The sort is stable. That is, elements that are equal (as determined by lt) appear in the same order in the sorted sequence as in the original.

    ord

    the ordering to be used to compare elements.

    returns

    a string consisting of the elements of this string sorted according to the ordering ord.

    Definition Classes
    SeqLike
    See also

    scala.math.Ordering

  170. def span(p: (Char) ⇒ Boolean): (String, String)

    Splits this string into a prefix/suffix pair according to a predicate.

    Splits this string into a prefix/suffix pair according to a predicate.

    Note: c span p is equivalent to (but possibly more efficient than) (c takeWhile p, c dropWhile p), provided the evaluation of the predicate p does not cause any side-effects.

    returns

    a pair consisting of the longest prefix of this string whose elements all satisfy p, and the rest of this string.

    Definition Classes
    IndexedSeqOptimizedTraversableLikeGenTraversableLike
  171. def split(separators: Array[Char]): Array[String]

    Definition Classes
    StringLike
    Annotations
    @throws( clazz = ... )
  172. def split(separator: Char): Array[String]

    Definition Classes
    StringLike
    Annotations
    @throws( clazz = ... )
  173. def splitAt(n: Int): (String, String)

    Splits this string into two at a given position.

    Splits this string into two at a given position. Note: c splitAt n is equivalent to (but possibly more efficient than) (c take n, c drop n).

    n

    the position at which to split.

    returns

    a pair of strings consisting of the first n elements of this string, and the other elements.

    Definition Classes
    IndexedSeqOptimizedTraversableLikeGenTraversableLike
  174. def startsWith[B](that: GenSeq[B], offset: Int): Boolean

    Tests whether this string contains the given sequence at a given index.

    Tests whether this string contains the given sequence at a given index.

    Note: If the both the receiver object this and the argument that are infinite sequences this method may not terminate.

    that

    the sequence to test

    offset

    the index where the sequence is searched.

    returns

    true if the sequence that is contained in this string at index offset, otherwise false.

    Definition Classes
    IndexedSeqOptimizedSeqLikeGenSeqLike
  175. def startsWith[B](that: GenSeq[B]): Boolean

    Tests whether this string starts with the given sequence.

    Tests whether this string starts with the given sequence.

    that

    the sequence to test

    returns

    true if this collection has that as a prefix, false otherwise.

    Definition Classes
    GenSeqLike
  176. def stringPrefix: String

    Defines the prefix of this object's toString representation.

    Defines the prefix of this object's toString representation.

    returns

    a string representation which starts the result of toString applied to this string. By default the string prefix is the simple name of the collection class string.

    Definition Classes
    TraversableLikeGenTraversableLike
  177. def stripLineEnd: String

    Strip trailing line end character from this string if it has one.

    Strip trailing line end character from this string if it has one.

    A line end character is one of

    • LF - line feed (0x0A hex)
    • FF - form feed (0x0C hex)

    If a line feed character LF is preceded by a carriage return CR (0x0D hex), the CR character is also stripped (Windows convention).

    Definition Classes
    StringLike
  178. def stripMargin: String

    For every line in this string:

    For every line in this string:

    Strip a leading prefix consisting of blanks or control characters followed by | from the line.

    Definition Classes
    StringLike
  179. def stripMargin(marginChar: Char): String

    For every line in this string:

    For every line in this string:

    Strip a leading prefix consisting of blanks or control characters followed by marginChar from the line.

    Definition Classes
    StringLike
  180. def stripPrefix(prefix: String): String

    Returns this string with the given prefix stripped.

    Returns this string with the given prefix stripped.

    Definition Classes
    StringLike
  181. def stripSuffix(suffix: String): String

    Returns this string with the given suffix stripped.

    Returns this string with the given suffix stripped. If this string does not end with suffix, it is returned unchanged.

    Definition Classes
    StringLike
  182. def subSequence(arg0: Int, arg1: Int): CharSequence

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String → CharSequence
  183. def substring(arg0: Int, arg1: Int): String

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  184. def substring(arg0: Int): String

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  185. def sum: A

    [use case] Sums up the elements of this collection.

    [use case]

    Sums up the elements of this collection.

    returns

    the sum of all elements in this string of numbers of type Int. Instead of Int, any other type T with an implicit Numeric[T] implementation can be used as element type of the string and as result type of sum. Examples of such types are: Long, Float, Double, BigInt.

    Definition Classes
    TraversableOnceGenTraversableOnce
    Full Signature

    def sum[B >: Char](implicit num: Numeric[B]): B

  186. def tail: String

    Selects all elements except the first.

    Selects all elements except the first.

    returns

    a string consisting of all elements of this string except the first one.

    Definition Classes
    IndexedSeqOptimizedTraversableLikeGenTraversableLike
    Exceptions thrown
    `UnsupportedOperationException`

    if the string is empty.

  187. def tails: Iterator[String]

    Iterates over the tails of this string.

    Iterates over the tails of this string. The first value will be this string and the final one will be an empty string, with the intervening values the results of successive applications of tail.

    returns

    an iterator over all the tails of this string

    Definition Classes
    TraversableLike
    Example:
    1. List(1,2,3).tails = Iterator(List(1,2,3), List(2,3), List(3), Nil)

  188. def take(n: Int): String

    Selects first n elements.

    Selects first n elements.

    n

    the number of elements to take from this string.

    returns

    a string consisting only of the first n elements of this string, or else the whole string, if it has less than n elements.

    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeGenTraversableLike
  189. def takeRight(n: Int): String

    Selects last n elements.

    Selects last n elements.

    n

    the number of elements to take

    returns

    a string consisting only of the last n elements of this string, or else the whole string, if it has less than n elements.

    Definition Classes
    IndexedSeqOptimizedIterableLike
  190. def takeWhile(p: (Char) ⇒ Boolean): String

    Takes longest prefix of elements that satisfy a predicate.

    Takes longest prefix of elements that satisfy a predicate.

    returns

    the longest prefix of this string whose elements all satisfy the predicate p.

    Definition Classes
    IndexedSeqOptimizedIterableLikeTraversableLikeGenTraversableLike
  191. def thisCollection: WrappedString

    The underlying collection seen as an instance of String.

    The underlying collection seen as an instance of String. By default this is implemented as the current collection object itself, but this can be overridden.

    Attributes
    protected[this]
    Definition Classes
    StringOpsIndexedSeqLikeSeqLikeIterableLikeTraversableLike
  192. def to[Col[_]]: Col[A]

    [use case] Converts this string into another by copying all elements.

    [use case]

    Converts this string into another by copying all elements.

    Col

    The collection type to build.

    returns

    a new collection containing all elements of this string.

    Definition Classes
    TraversableLikeTraversableOnceGenTraversableOnce
    Full Signature

    def to[Col[_]](implicit cbf: CanBuildFrom[Nothing, Char, Col[Char]]): Col[Char]

  193. def toArray: Array[A]

    [use case] Converts this string to an array.

    [use case]

    Converts this string to an array.

    returns

    an array containing all elements of this string. An ClassTag must be available for the element type of this string.

    Definition Classes
    StringLikeTraversableOnceGenTraversableOnce
    Full Signature

    def toArray[B >: Char](implicit arg0: ClassTag[B]): Array[B]

  194. def toBoolean: Boolean

    Definition Classes
    StringLike
  195. def toBuffer[A1 >: Char]: Buffer[A1]

    Converts this string to a mutable buffer.

    Converts this string to a mutable buffer.

    returns

    a buffer containing all elements of this string.

    Definition Classes
    IndexedSeqLikeTraversableOnceGenTraversableOnce
  196. def toByte: Byte

    Definition Classes
    StringLike
  197. def toCharArray(): Array[Char]

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  198. def toCollection(repr: String): WrappedString

    A conversion from collections of type Repr to String objects.

    A conversion from collections of type Repr to String objects. By default this is implemented as just a cast, but this can be overridden.

    Attributes
    protected[this]
    Definition Classes
    StringOpsIndexedSeqLikeSeqLikeIterableLikeTraversableLike
  199. def toDouble: Double

    Definition Classes
    StringLike
  200. def toFloat: Float

    Definition Classes
    StringLike
  201. def toIndexedSeq: IndexedSeq[Char]

    Converts this string to an indexed sequence.

    Converts this string to an indexed sequence.

    returns

    an indexed sequence containing all elements of this string.

    Definition Classes
    TraversableOnceGenTraversableOnce
  202. def toInt: Int

    Definition Classes
    StringLike
  203. def toIterable: collection.Iterable[Char]

    Converts this string to an iterable collection.

    Converts this string to an iterable collection. Note that the choice of target Iterable is lazy in this default implementation as this TraversableOnce may be lazy and unevaluated (i.e. it may be an iterator which is only traversable once).

    returns

    an Iterable containing all elements of this string.

    Definition Classes
    IterableLikeTraversableOnceGenTraversableOnce
  204. def toIterator: Iterator[Char]

    Returns an Iterator over the elements in this string.

    Returns an Iterator over the elements in this string. Will return the same Iterator if this instance is already an Iterator.

    returns

    an Iterator containing all elements of this string.

    Definition Classes
    IterableLikeTraversableLikeGenTraversableOnce
  205. def toList: scala.List[Char]

    Converts this string to a list.

    Converts this string to a list.

    returns

    a list containing all elements of this string.

    Definition Classes
    TraversableOnceGenTraversableOnce
  206. def toLong: Long

    Definition Classes
    StringLike
  207. def toLowerCase(): String

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  208. def toLowerCase(arg0: Locale): String

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  209. def toMap[T, U]: collection.Map[T, U]

    [use case] Converts this string to a map.

    [use case]

    Converts this string to a map. This method is unavailable unless the elements are members of Tuple2, each ((T, U)) becoming a key-value pair in the map. Duplicate keys will be overwritten by later keys: if this is an unordered collection, which key is in the resulting map is undefined.

    returns

    a map of type immutable.Map[T, U] containing all key/value pairs of type (T, U) of this string.

    Definition Classes
    TraversableOnceGenTraversableOnce
    Full Signature

    def toMap[T, U](implicit ev: <:<[Char, (T, U)]): Map[T, U]

  210. def toParArray: ParArray[Char]

    Implicit information
    This member is added by an implicit conversion from StringOps to TraversableOps[Char] performed by method traversable2ops in scala.collection.parallel.
    Definition Classes
    TraversableOps
  211. def toSeq: collection.Seq[Char]

    Converts this string to a sequence.

    Converts this string to a sequence.

    Overridden for efficiency.

    returns

    a sequence containing all elements of this string.

    Definition Classes
    SeqLikeGenSeqLikeTraversableOnceGenTraversableOnce
  212. def toSet[B >: Char]: Set[B]

    Converts this string to a set.

    Converts this string to a set.

    returns

    a set containing all elements of this string.

    Definition Classes
    TraversableOnceGenTraversableOnce
  213. def toShort: Short

    Definition Classes
    StringLike
  214. def toStream: Stream[Char]

    Converts this string to a stream.

    Converts this string to a stream.

    returns

    a stream containing all elements of this string.

    Definition Classes
    IterableLikeTraversableLikeGenTraversableOnce
  215. def toString(): String

    Converts this string to a string.

    Converts this string to a string.

    returns

    a string representation of this collection. By default this string consists of the stringPrefix of this string, followed by all elements separated by commas and enclosed in parentheses.

    Definition Classes
    StringOpsSeqLikeTraversableLikeAny
  216. def toTraversable: collection.Traversable[Char]

    Converts this string to an unspecified Traversable.

    Converts this string to an unspecified Traversable. Will return the same collection if this instance is already Traversable.

    returns

    a Traversable containing all elements of this string.

    Definition Classes
    TraversableLikeTraversableOnceGenTraversableOnce
  217. def toUpperCase(): String

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  218. def toUpperCase(arg0: Locale): String

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  219. def toVector: scala.Vector[Char]

    Converts this string to a Vector.

    Converts this string to a Vector.

    returns

    a vector containing all elements of this string.

    Definition Classes
    TraversableOnceGenTraversableOnce
  220. def trim(): String

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
  221. def union(that: collection.Seq[Char]): String[Char]

    [use case] Produces a new sequence which contains all elements of this string and also all elements of a given sequence.

    [use case]

    Produces a new sequence which contains all elements of this string and also all elements of a given sequence. xs union ys is equivalent to xs ++ ys.

    Another way to express this is that xs union ys computes the order-presevring multi-set union of xs and ys. union is hence a counter-part of diff and intersect which also work on multi-sets.

    that

    the sequence to add.

    returns

    a new string which contains all elements of this string followed by all elements of that.

    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def union[B >: Char, That](that: GenSeq[B])(implicit bf: CanBuildFrom[String, B, That]): That

  222. def updated(index: Int, elem: A): String[A]

    [use case] A copy of this string with one single replaced element.

    [use case]

    A copy of this string with one single replaced element.

    index

    the position of the replacement

    elem

    the replacing element

    returns

    a copy of this string with the element at position index replaced by elem.

    Definition Classes
    SeqLikeGenSeqLike
    Full Signature

    def updated[B >: Char, That](index: Int, elem: B)(implicit bf: CanBuildFrom[String, B, That]): That

  223. def view(from: Int, until: Int): SeqView[Char, String]

    Creates a non-strict view of a slice of this string.

    Creates a non-strict view of a slice of this string.

    Note: the difference between view and slice is that view produces a view of the current string, whereas slice produces a new string.

    Note: view(from, to) is equivalent to view.slice(from, to)

    from

    the index of the first element of the view

    until

    the index of the element following the view

    returns

    a non-strict view of a slice of this string, starting at index from and extending up to (but not including) index until.

    Definition Classes
    SeqLikeIterableLikeTraversableLike
  224. def view: SeqView[Char, String]

    Creates a non-strict view of this string.

    Creates a non-strict view of this string.

    returns

    a non-strict view of this string.

    Definition Classes
    SeqLikeIterableLikeTraversableLike
  225. def withFilter(p: (Char) ⇒ Boolean): FilterMonadic[Char, String]

    Creates a non-strict filter of this string.

    Creates a non-strict filter of this string.

    Note: the difference between c filter p and c withFilter p is that the former creates a new collection, whereas the latter only restricts the domain of subsequent map, flatMap, foreach, and withFilter operations.

    p

    the predicate used to test elements.

    returns

    an object of class WithFilter, which supports map, flatMap, foreach, and withFilter operations. All these operations apply to those elements of this string which satisfy the predicate p.

    Definition Classes
    TraversableLikeFilterMonadic
  226. def zip[B](that: GenIterable[B]): String[(A, B)]

    [use case] Returns a string formed from this string and another iterable collection by combining corresponding elements in pairs.

    [use case]

    Returns a string formed from this string and another iterable collection by combining corresponding elements in pairs. If one of the two collections is longer than the other, its remaining elements are ignored.

    B

    the type of the second half of the returned pairs

    that

    The iterable providing the second half of each result pair

    returns

    a new string containing pairs consisting of corresponding elements of this string and that. The length of the returned collection is the minimum of the lengths of this string and that.

    Definition Classes
    IndexedSeqOptimizedIterableLikeGenIterableLike
    Full Signature

    def zip[A1 >: Char, B, That](that: GenIterable[B])(implicit bf: CanBuildFrom[String, (A1, B), That]): That

  227. def zipAll[B](that: collection.Iterable[B], thisElem: A, thatElem: B): String[(A, B)]

    [use case] Returns a string formed from this string and another iterable collection by combining corresponding elements in pairs.

    [use case]

    Returns a string formed from this string and another iterable collection by combining corresponding elements in pairs. If one of the two collections is shorter than the other, placeholder elements are used to extend the shorter collection to the length of the longer.

    B

    the type of the second half of the returned pairs

    that

    The iterable providing the second half of each result pair

    thisElem

    the element to be used to fill up the result if this string is shorter than that.

    thatElem

    the element to be used to fill up the result if that is shorter than this string.

    returns

    a new string containing pairs consisting of corresponding elements of this string and that. The length of the returned collection is the maximum of the lengths of this string and that. If this string is shorter than that, thisElem values are used to pad the result. If that is shorter than this string, thatElem values are used to pad the result.

    Definition Classes
    IterableLikeGenIterableLike
    Full Signature

    def zipAll[B, A1 >: Char, That](that: GenIterable[B], thisElem: A1, thatElem: B)(implicit bf: CanBuildFrom[String, (A1, B), That]): That

  228. def zipWithIndex: String[(A, Int)]

    [use case] Zips this string with its indices.

    [use case]

    Zips this string with its indices.

    returns

    A new string containing pairs consisting of all elements of this string paired with their index. Indices start at 0.

    Definition Classes
    IndexedSeqOptimizedIterableLikeGenIterableLike
    Full Signature

    def zipWithIndex[A1 >: Char, That](implicit bf: CanBuildFrom[String, (A1, Int), That]): That

    Example:
    1. List("a", "b", "c").zipWithIndex = List(("a", 0), ("b", 1), ("c", 2))

  229. def [B](y: B): (StringOps, B)

    Implicit information
    This member is added by an implicit conversion from StringOps to ArrowAssoc[StringOps] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Shadowed Implicit Value Members

  1. final def +(arg0: Any): String

    Implicit information
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    Definition Classes
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  2. def +(other: String): String

    Implicit information
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    Definition Classes
    StringAdd
  3. def compareTo(arg0: String): Int

    Implicit information
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    Shadowing
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    Definition Classes
    String → Comparable
  4. def contains(arg0: CharSequence): Boolean

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Shadowing
    This implicitly inherited member is shadowed by one or more members in this class.
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    Definition Classes
    String
  5. def endsWith(arg0: String): Boolean

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
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    Definition Classes
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  6. def filter(p: (Char) ⇒ Boolean): TraversableOnce[Char]

    Implicit information
    This member is added by an implicit conversion from StringOps to MonadOps[Char] performed by method MonadOps in scala.collection.TraversableOnce.
    Shadowing
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    Definition Classes
    MonadOps
  7. def flatMap[B](f: (Char) ⇒ GenTraversableOnce[B]): TraversableOnce[B]

    Implicit information
    This member is added by an implicit conversion from StringOps to MonadOps[Char] performed by method MonadOps in scala.collection.TraversableOnce.
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    This implicitly inherited member is shadowed by one or more members in this class.
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    Definition Classes
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  8. def indexOf(arg0: String, arg1: Int): Int

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Shadowing
    This implicitly inherited member is shadowed by one or more members in this class.
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    (stringOps: String).indexOf(arg0, arg1)
    Definition Classes
    String
  9. def indexOf(arg0: String): Int

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
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    Definition Classes
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  10. def indexOf(arg0: Int, arg1: Int): Int

    Implicit information
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    Shadowing
    This implicitly inherited member is shadowed by one or more members in this class.
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    (stringOps: String).indexOf(arg0, arg1)
    Definition Classes
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  11. def indexOf(arg0: Int): Int

    Implicit information
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    Shadowing
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    Definition Classes
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  12. def isEmpty(): Boolean

    Implicit information
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    Definition Classes
    String
  13. def lastIndexOf(arg0: String, arg1: Int): Int

    Implicit information
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    Definition Classes
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  14. def lastIndexOf(arg0: String): Int

    Implicit information
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    Definition Classes
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  15. def lastIndexOf(arg0: Int, arg1: Int): Int

    Implicit information
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    Definition Classes
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  16. def lastIndexOf(arg0: Int): Int

    Implicit information
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    Definition Classes
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  17. def length(): Int

    Implicit information
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    Definition Classes
    String → CharSequence
  18. def map[B](f: (Char) ⇒ B): TraversableOnce[B]

    Implicit information
    This member is added by an implicit conversion from StringOps to MonadOps[Char] performed by method MonadOps in scala.collection.TraversableOnce.
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    Definition Classes
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  19. val self: Any

    Implicit information
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  20. val self: Any

    Implicit information
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  21. def split(arg0: String): Array[String]

    Implicit information
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    Definition Classes
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  22. def split(arg0: String, arg1: Int): Array[String]

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    Definition Classes
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  23. def startsWith(arg0: String): Boolean

    Implicit information
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    Definition Classes
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  24. def startsWith(arg0: String, arg1: Int): Boolean

    Implicit information
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    Definition Classes
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  25. def toString(): String

    Creates a String representation of this object.

    Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.

    returns

    a String representation of the object.

    Implicit information
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    Definition Classes
    String → CharSequence → AnyRef → Any
  26. def withFilter(p: (Char) ⇒ Boolean): Iterator[Char]

    Implicit information
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    Definition Classes
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Deprecated Value Members

  1. def /:\[A1 >: Char](z: A1)(op: (A1, A1) ⇒ A1): A1

    A syntactic sugar for out of order folding.

    A syntactic sugar for out of order folding. See fold.

    Example:

    scala> val a = LinkedList(1,2,3,4)
    a: scala.collection.mutable.LinkedList[Int] = LinkedList(1, 2, 3, 4)
    
    scala> val b = (a /:\ 5)(_+_)
    b: Int = 15
    Definition Classes
    GenTraversableOnce
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) use fold instead

  2. def getBytes(arg0: Int, arg1: Int, arg2: Array[Byte], arg3: Int): Unit

    Implicit information
    This member is added by an implicit conversion from StringOps to String performed by method unaugmentString in scala.Predef.
    Definition Classes
    String
    Annotations
    @Deprecated @deprecated
    Deprecated

    (Since version ) see corresponding Javadoc for more information.

  3. def x: StringOps

    Implicit information
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    Definition Classes
    ArrowAssoc
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use leftOfArrow instead

  4. def x: StringOps

    Implicit information
    This member is added by an implicit conversion from StringOps to Ensuring[StringOps] performed by method any2Ensuring in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (stringOps: Ensuring[StringOps]).x
    Definition Classes
    Ensuring
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use resultOfEnsuring instead

Inherited from StringLike[String]

Inherited from math.Ordered[String]

Inherited from Comparable[String]

Inherited from IndexedSeqOptimized[Char, String]

Inherited from IndexedSeqLike[Char, String]

Inherited from SeqLike[Char, String]

Inherited from GenSeqLike[Char, String]

Inherited from IterableLike[Char, String]

Inherited from GenIterableLike[Char, String]

Inherited from TraversableLike[Char, String]

Inherited from GenTraversableLike[Char, String]

Inherited from Parallelizable[Char, ParSeq[Char]]

Inherited from TraversableOnce[Char]

Inherited from GenTraversableOnce[Char]

Inherited from FilterMonadic[Char, String]

Inherited from HasNewBuilder[Char, String]

Inherited from Equals

Inherited from AnyVal

Inherited from NotNull

Inherited from Any

Inherited by implicit conversion unaugmentString from StringOps to String

Inherited by implicit conversion traversable2ops from StringOps to TraversableOps[Char]

Inherited by implicit conversion MonadOps from StringOps to MonadOps[Char]

Inherited by implicit conversion any2stringadd from StringOps to StringAdd

Inherited by implicit conversion any2stringfmt from StringOps to StringFormat

Inherited by implicit conversion any2ArrowAssoc from StringOps to ArrowAssoc[StringOps]

Inherited by implicit conversion any2Ensuring from StringOps to Ensuring[StringOps]

Inherited by implicit conversion alternateImplicit from StringOps to ForceImplicitAmbiguity

Ungrouped