Returns a new NonEmptyArray
containing the elements of this NonEmptyArray
followed by the elements of the passed GenTraversableOnce
.
Returns a new NonEmptyArray
containing the elements of this NonEmptyArray
followed by the elements of the passed GenTraversableOnce
.
The element type of the resulting NonEmptyArray
is the most specific superclass encompassing the element types of this NonEmptyArray
and the passed GenTraversableOnce
.
the element type of the returned NonEmptyArray
the GenTraversableOnce
to append
a new NonEmptyArray
that contains all the elements of this NonEmptyArray
followed by all elements of other
.
Returns a new NonEmptyArray
containing the elements of this NonEmptyArray
followed by the elements of the passed Every
.
Returns a new NonEmptyArray
containing the elements of this NonEmptyArray
followed by the elements of the passed Every
.
The element type of the resulting NonEmptyArray
is the most specific superclass encompassing the element types of this NonEmptyArray
and the passed Every
.
the element type of the returned NonEmptyArray
the Every
to append
a new NonEmptyArray
that contains all the elements of this NonEmptyArray
followed by all elements of other
.
Returns a new NonEmptyArray
containing the elements of this NonEmptyArray
followed by the elements of the passed NonEmptyArray
.
Returns a new NonEmptyArray
containing the elements of this NonEmptyArray
followed by the elements of the passed NonEmptyArray
.
The element type of the resulting NonEmptyArray
is the most specific superclass encompassing the element types of this and the passed NonEmptyArray
.
the element type of the returned NonEmptyArray
the NonEmptyArray
to append
a new NonEmptyList
that contains all the elements of this NonEmptyList
followed by all elements of other
.
Returns a new NonEmptyArray
with the given element prepended.
Returns a new NonEmptyArray
with the given element prepended.
Note that :-ending operators are right associative. A mnemonic for +:
vs. :+
is: the COLon goes on the COLlection side.
the element to prepend to this NonEmptyArray
a new NonEmptyArray
consisting of element
followed by all elements of this NonEmptyArray
.
Returns a new NonEmptyArray
with the given element appended.
Returns a new NonEmptyArray
with the given element appended.
Note a mnemonic for +:
vs. :+
is: the COLon goes on the COLlection side.
the element to append to this NonEmptyArray
a new NonEmptyArray
consisting of all elements of this NonEmptyArray
followed by element
.
Appends all elements of this NonEmptyArray
to a string builder using start, end, and separator strings.
Appends all elements of this NonEmptyArray
to a string builder using start, end, and separator strings. The written text will consist of a concatenation of
the string start
; the result of invoking toString
on all elements of this NonEmptyArray
,
separated by the string sep
; and the string end
the string builder to which elements will be appended
the ending string
the separator string
the string builder, sb
, to which elements were appended.
Appends all elements of this NonEmptyArray
to a string builder using a separator string.
Appends all elements of this NonEmptyArray
to a string builder using a separator string. The written text will consist of a concatenation of the
result of invoking toString
on of every element of this NonEmptyArray
, separated by the string sep
.
the string builder to which elements will be appended
the separator string
the string builder, sb
, to which elements were appended.
Appends all elements of this NonEmptyArray
to a string builder.
Appends all elements of this NonEmptyArray
to a string builder. The written text will consist of a concatenation of the result of invoking toString
on of every element of this NonEmptyArray
, without any separator string.
the string builder to which elements will be appended
the string builder, sb
, to which elements were appended.
Selects an element by its index in the NonEmptyArray
.
Selects an element by its index in the NonEmptyArray
.
the element of this NonEmptyArray
at index idx
, where 0 indicates the first element.
Finds the first element of this NonEmptyArray
for which the given partial function is defined, if any, and applies the partial function to it.
Finds the first element of this NonEmptyArray
for which the given partial function is defined, if any, and applies the partial function to it.
the partial function
an Option
containing pf
applied to the first element for which it is defined, or None
if
the partial function was not defined for any element.
Indicates whether this NonEmptyArray
contains a given value as an element.
Indicates whether this NonEmptyArray
contains a given value as an element.
the element to look for
true if this NonEmptyArray
has an element that is equal (as determined by ==)
to elem
, false otherwise.
Indicates whether this NonEmptyArray
contains a given NonEmptyArray
as a slice.
Indicates whether this NonEmptyArray
contains a given NonEmptyArray
as a slice.
the NonEmptyArray
slice to look for
true if this NonEmptyArray
contains a slice with the same elements as that
, otherwise false
.
Indicates whether this NonEmptyArray
contains a given Every
as a slice.
Indicates whether this NonEmptyArray
contains a given Every
as a slice.
the Every
slice to look for
true if this NonEmptyArray
contains a slice with the same elements as that
, otherwise false
.
Indicates whether this NonEmptyArray
contains a given GenSeq
as a slice.
Indicates whether this NonEmptyArray
contains a given GenSeq
as a slice.
the GenSeq
slice to look for
true if this NonEmptyArray
contains a slice with the same elements as that
, otherwise false
.
Copies values of this NonEmptyArray
to an array.
Copies values of this NonEmptyArray
to an array. Fills the given array arr
with at most len
elements of this NonEmptyArray
, beginning at
index start
. Copying will stop once either the end of the current NonEmptyArray
is reached, the end of the array is reached, or
len
elements have been copied.
the array to fill
the starting index
the maximum number of elements to copy
Copies values of this NonEmptyArray
to an array.
Copies values of this NonEmptyArray
to an array. Fills the given array arr
with values of this NonEmptyArray
, beginning at
index start
. Copying will stop once either the end of the current NonEmptyArray
is reached, or the end of the array is reached.
the array to fill
the starting index
Copies values of this NonEmptyArray
to an array.
Copies values of this NonEmptyArray
to an array. Fills the given array arr
with values of this NonEmptyArray
. Copying
will stop once either the end of the current NonEmptyArray
is reached, or the end of the array is reached.
the array to fill
Copies all elements of this NonEmptyArray
to a buffer.
Copies all elements of this NonEmptyArray
to a buffer.
the buffer to which elements are copied
Indicates whether every element of this NonEmptyArray
relates to the corresponding element of a given NonEmptyArray
by satisfying a given predicate.
Indicates whether every element of this NonEmptyArray
relates to the corresponding element of a given NonEmptyArray
by satisfying a given predicate.
the type of the elements of that
the NonEmptyArray
to compare for correspondence
the predicate, which relates elements from this and the passed NonEmptyArray
true if this and the passed NonEmptyArray
have the same length and p(x, y)
is true
for all corresponding elements x
of this NonEmptyArray
and y
of that, otherwise false
.
Indicates whether every element of this NonEmptyArray
relates to the corresponding element of a given Every
by satisfying a given predicate.
Indicates whether every element of this NonEmptyArray
relates to the corresponding element of a given Every
by satisfying a given predicate.
the type of the elements of that
the Every
to compare for correspondence
the predicate, which relates elements from this NonEmptyArray
and the passed Every
true if this NonEmptyArray
and the passed Every
have the same length and p(x, y)
is true
for all corresponding elements x
of this NonEmptyArray
and y
of that, otherwise false
.
Indicates whether every element of this NonEmptyArray
relates to the corresponding element of a given GenSeq
by satisfying a given predicate.
Indicates whether every element of this NonEmptyArray
relates to the corresponding element of a given GenSeq
by satisfying a given predicate.
the type of the elements of that
the GenSeq
to compare for correspondence
the predicate, which relates elements from this NonEmptyArray
and the passed GenSeq
true if this NonEmptyArray
and the passed GenSeq
have the same length and p(x, y)
is true
for all corresponding elements x
of this NonEmptyArray
and y
of that, otherwise false
.
Counts the number of elements in this NonEmptyArray
that satisfy a predicate.
Counts the number of elements in this NonEmptyArray
that satisfy a predicate.
the predicate used to test elements.
the number of elements satisfying the predicate p
.
Builds a new NonEmptyArray
from this NonEmptyArray
without any duplicate elements.
Builds a new NonEmptyArray
from this NonEmptyArray
without any duplicate elements.
A new NonEmptyArray
that contains the first occurrence of every element of this NonEmptyArray
.
Indicates whether this NonEmptyArray
ends with the given NonEmptyArray
.
Indicates whether this NonEmptyArray
ends with the given NonEmptyArray
.
the NonEmptyArray
to test
true
if this NonEmptyArray
has that
as a suffix, false
otherwise.
Indicates whether this NonEmptyArray
ends with the given Every
.
Indicates whether this NonEmptyArray
ends with the given Every
.
the Every
to test
true
if this NonEmptyArray
has that
as a suffix, false
otherwise.
Indicates whether this NonEmptyArray
ends with the given GenSeq
.
Indicates whether this NonEmptyArray
ends with the given GenSeq
.
the sequence to test
true
if this NonEmptyArray
has that
as a suffix, false
otherwise.
Indicates whether a predicate holds for at least one of the elements of this NonEmptyArray
.
Indicates whether a predicate holds for at least one of the elements of this NonEmptyArray
.
true
if the given predicate p
holds for some of the elements of this NonEmptyArray
, otherwise false
.
Finds the first element of this NonEmptyArray
that satisfies the given predicate, if any.
Finds the first element of this NonEmptyArray
that satisfies the given predicate, if any.
the predicate used to test elements
an Some
containing the first element in this NonEmptyArray
that satisfies p
, or None
if none exists.
Builds a new NonEmptyArray
by applying a function to all elements of this NonEmptyArray
and using the elements of the resulting NonEmptyArray
s.
Builds a new NonEmptyArray
by applying a function to all elements of this NonEmptyArray
and using the elements of the resulting NonEmptyArray
s.
the element type of the returned NonEmptyArray
the function to apply to each element.
a new NonEmptyArray
containing elements obtained by applying the given function f
to each element of this NonEmptyArray
and concatenating
the elements of resulting NonEmptyArray
s.
Converts this NonEmptyArray
of NonEmptyArray
s into a NonEmptyArray
formed by the elements of the nested NonEmptyArray
s.
Converts this NonEmptyArray
of NonEmptyArray
s into a NonEmptyArray
formed by the elements of the nested NonEmptyArray
s.
Note: You cannot use this flatten
method on a NonEmptyArray
that contains a GenTraversableOnce
s, because
if all the nested GenTraversableOnce
s were empty, you'd end up with an empty NonEmptyArray
.
a new NonEmptyArray
resulting from concatenating all nested NonEmptyArray
s.
Folds the elements of this NonEmptyArray
using the specified associative binary operator.
Folds the elements of this NonEmptyArray
using the specified associative binary operator.
The order in which operations are performed on elements is unspecified and may be nondeterministic.
a type parameter for the binary operator, a supertype of T.
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.)
a binary operator that must be associative
the result of applying fold operator op
between all the elements and z
Applies a binary operator to a start value and all elements of this NonEmptyArray
, going left to right.
Applies a binary operator to a start value and all elements of this NonEmptyArray
, going left to right.
the result type of the binary operator.
the start value.
the binary operator.
the result of inserting op
between consecutive elements of this NonEmptyArray
, 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
NonEmptyArray
.Applies a binary operator to all elements of this NonEmptyArray
and a start value, going right to left.
Applies a binary operator to all elements of this NonEmptyArray
and a start value, going right to left.
the result of the binary operator
the start value
the binary operator
the result of inserting op
between consecutive elements of this NonEmptyArray
, 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
NonEmptyArray
.Indicates whether a predicate holds for all elements of this NonEmptyArray
.
Indicates whether a predicate holds for all elements of this NonEmptyArray
.
the predicate used to test elements.
true
if the given predicate p
holds for all elements of this NonEmptyArray
, otherwise false
.
Applies a function f
to all elements of this NonEmptyArray
.
Applies a function f
to all elements of this NonEmptyArray
.
the function that is applied for its side-effect to every element. The result of function f
is discarded.
Partitions this NonEmptyArray
into a map of NonEmptyArray
s according to some discriminator function.
Partitions this NonEmptyArray
into a map of NonEmptyArray
s according to some discriminator function.
the type of keys returned by the discriminator function.
the discriminator function.
A map from keys to NonEmptyArray
s such that the following invariant holds:
(nonEmptyArray.toArray partition f)(k) = xs filter (x => f(x) == k)That is, every key
k
is bound to a NonEmptyArray
of those elements x
for which f(x)
equals k
.Partitions elements into fixed size NonEmptyArray
s.
Partitions elements into fixed size NonEmptyArray
s.
the number of elements per group
An iterator producing NonEmptyArray
s of size size
, except the last will be truncated if the elements don't divide evenly.
Returns true
to indicate this NonEmptyArray
has a definite size, since all NonEmptyArray
s are strict collections.
Returns true
to indicate this NonEmptyArray
has a definite size, since all NonEmptyArray
s are strict collections.
Selects the first element of this NonEmptyArray
.
Selects the first element of this NonEmptyArray
.
the first element of this NonEmptyArray
.
Selects the first element of this NonEmptyArray
and returns it wrapped in a Some
.
Selects the first element of this NonEmptyArray
and returns it wrapped in a Some
.
the first element of this NonEmptyArray
, wrapped in a Some
.
Finds index of first occurrence of some value in this NonEmptyArray
after or at some start index.
Finds index of first occurrence of some value in this NonEmptyArray
after or at some start index.
the element value to search for.
the start index
the index >=
from
of the first element of this NonEmptyArray
that is equal (as determined by ==
) to elem
,
or -1
, if none exists.
Finds index of first occurrence of some value in this NonEmptyArray
.
Finds index of first occurrence of some value in this NonEmptyArray
.
the element value to search for.
the index of the first element of this NonEmptyArray
that is equal (as determined by ==
) to elem
,
or -1
, if none exists.
Finds first index after or at a start index where this NonEmptyArray
contains a given NonEmptyArray
as a slice.
Finds first index after or at a start index where this NonEmptyArray
contains a given NonEmptyArray
as a slice.
the NonEmptyArray
defining the slice to look for
the start index
the first index >=
from
such that the elements of this NonEmptyArray
starting at this index match the elements of
NonEmptyArray
that
, or -1
of no such subsequence exists.
Finds first index after or at a start index where this NonEmptyArray
contains a given Every
as a slice.
Finds first index after or at a start index where this NonEmptyArray
contains a given Every
as a slice.
the Every
defining the slice to look for
the start index
the first index >=
from
such that the elements of this NonEmptyArray
starting at this index match the elements of
Every
that
, or -1
of no such subsequence exists.
Finds first index where this NonEmptyArray
contains a given NonEmptyArray
as a slice.
Finds first index where this NonEmptyArray
contains a given NonEmptyArray
as a slice.
the NonEmptyArray
defining the slice to look for
the first index such that the elements of this NonEmptyArray
starting at this index match the elements of
NonEmptyArray
that
, or -1
of no such subsequence exists.
Finds first index where this NonEmptyArray
contains a given Every
as a slice.
Finds first index where this NonEmptyArray
contains a given Every
as a slice.
the Every
defining the slice to look for
the first index such that the elements of this NonEmptyArray
starting at this index match the elements of
Every
that
, or -1
of no such subsequence exists.
Finds first index after or at a start index where this NonEmptyArray
contains a given GenSeq
as a slice.
Finds first index after or at a start index where this NonEmptyArray
contains a given GenSeq
as a slice.
the GenSeq
defining the slice to look for
the start index
the first index >=
from
at which the elements of this NonEmptyArray
starting at that index match the elements of
GenSeq
that
, or -1
of no such subsequence exists.
Finds first index where this NonEmptyArray
contains a given GenSeq
as a slice.
Finds first index where this NonEmptyArray
contains a given GenSeq
as a slice.
the GenSeq
defining the slice to look for
the first index at which the elements of this NonEmptyArray
starting at that index match the elements of
GenSeq
that
, or -1
of no such subsequence exists.
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.
the predicate used to test elements.
the start index
the index >=
from
of the first element of this NonEmptyArray
that satisfies the predicate p
,
or -1
, if none exists.
Finds index of the first element satisfying some predicate.
Finds index of the first element satisfying some predicate.
the predicate used to test elements.
the index of the first element of this NonEmptyArray
that satisfies the predicate p
,
or -1
, if none exists.
Produces the range of all indices of this NonEmptyArray
.
Produces the range of all indices of this NonEmptyArray
.
a Range
value from 0
to one less than the length of this NonEmptyArray
.
Tests whether this NonEmptyArray
contains given index.
Tests whether this NonEmptyArray
contains given index.
the index to test
true if this NonEmptyArray
contains an element at position idx
, false
otherwise.
Returns false
to indicate this NonEmptyArray
, like all NonEmptyArray
s, is non-empty.
Returns false
to indicate this NonEmptyArray
, like all NonEmptyArray
s, is non-empty.
false
Returns true
to indicate this NonEmptyArray
, like all NonEmptyArray
s, can be traversed repeatedly.
Returns true
to indicate this NonEmptyArray
, like all NonEmptyArray
s, can be traversed repeatedly.
true
Creates and returns a new iterator over all elements contained in this NonEmptyArray
.
Creates and returns a new iterator over all elements contained in this NonEmptyArray
.
the new iterator
Selects the last element of this NonEmptyArray
.
Selects the last element of this NonEmptyArray
.
the last element of this NonEmptyArray
.
Finds the index of the last occurrence of some value in this NonEmptyArray
before or at a given end
index.
Finds the index of the last occurrence of some value in this NonEmptyArray
before or at a given end
index.
the element value to search for.
the end index.
the index >=
end
of the last element of this NonEmptyArray
that is equal (as determined by ==
)
to elem
, or -1
, if none exists.
Finds the index of the last occurrence of some value in this NonEmptyArray
.
Finds the index of the last occurrence of some value in this NonEmptyArray
.
the element value to search for.
the index of the last element of this NonEmptyArray
that is equal (as determined by ==
) to elem
,
or -1
, if none exists.
Finds the last index before or at a given end index where this NonEmptyArray
contains a given NonEmptyArray
as a slice.
Finds the last index before or at a given end index where this NonEmptyArray
contains a given NonEmptyArray
as a slice.
the NonEmptyArray
defining the slice to look for
the end index
the last index >=
end
at which the elements of this NonEmptyArray
starting at that index match the elements of
NonEmptyArray
that
, or -1
of no such subsequence exists.
Finds the last index before or at a given end index where this NonEmptyArray
contains a given Every
as a slice.
Finds the last index before or at a given end index where this NonEmptyArray
contains a given Every
as a slice.
the Every
defining the slice to look for
the end index
the last index >=
end
at which the elements of this NonEmptyArray
starting at that index match the elements of
Every
that
, or -1
of no such subsequence exists.
Finds the last index where this NonEmptyArray
contains a given NonEmptyArray
as a slice.
Finds the last index where this NonEmptyArray
contains a given NonEmptyArray
as a slice.
the NonEmptyArray
defining the slice to look for
the last index at which the elements of this NonEmptyArray
starting at that index match the elements of
NonEmptyArray
that
, or -1
of no such subsequence exists.
Finds the last index where this NonEmptyArray
contains a given Every
as a slice.
Finds the last index where this NonEmptyArray
contains a given Every
as a slice.
the Every
defining the slice to look for
the last index at which the elements of this NonEmptyArray
starting at that index match the elements of
Every
that
, or -1
of no such subsequence exists.
Finds the last index before or at a given end index where this NonEmptyArray
contains a given GenSeq
as a slice.
Finds the last index before or at a given end index where this NonEmptyArray
contains a given GenSeq
as a slice.
the GenSeq
defining the slice to look for
the end index
the last index >=
end
at which the elements of this NonEmptyArray
starting at that index match the elements of
GenSeq
that
, or -1
of no such subsequence exists.
Finds the last index where this NonEmptyArray
contains a given GenSeq
as a slice.
Finds the last index where this NonEmptyArray
contains a given GenSeq
as a slice.
the GenSeq
defining the slice to look for
the last index at which the elements of this NonEmptyArray
starting at that index match the elements of
GenSeq
that
, or -1
of no such subsequence exists.
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.
the predicate used to test elements.
the end index
the index >=
end
of the last element of this NonEmptyArray
that satisfies the predicate p
,
or -1
, if none exists.
Finds index of last element satisfying some predicate.
Finds index of last element satisfying some predicate.
the predicate used to test elements.
the index of the last element of this NonEmptyArray
that satisfies the predicate p
, or -1
, if none exists.
Returns the last element of this NonEmptyArray
, wrapped in a Some
.
Returns the last element of this NonEmptyArray
, wrapped in a Some
.
the last element, wrapped in a Some
.
The length of this NonEmptyArray
.
The length of this NonEmptyArray
.
Note: length
and size
yield the same result, which will be >
= 1.
the number of elements in this NonEmptyArray
.
Compares the length of this NonEmptyArray
to a test value.
Compares the length of this NonEmptyArray
to a test value.
the test value that gets compared with the length.
a value x
where
x < 0 if this.length < len x == 0 if this.length == len x > 0 if this.length > len
Builds a new NonEmptyArray
by applying a function to all elements of this NonEmptyArray
.
Builds a new NonEmptyArray
by applying a function to all elements of this NonEmptyArray
.
the element type of the returned NonEmptyArray
.
the function to apply to each element.
a new NonEmptyArray
resulting from applying the given function f
to each element of this NonEmptyArray
and collecting the results.
Finds the largest element.
Finds the largest element.
the largest element of this NonEmptyArray
.
Finds the largest result after applying the given function to every element.
Finds the largest result after applying the given function to every element.
the largest result of applying the given function to every element of this NonEmptyArray
.
Finds the smallest element.
Finds the smallest element.
the smallest element of this NonEmptyArray
.
Finds the smallest result after applying the given function to every element.
Finds the smallest result after applying the given function to every element.
the smallest result of applying the given function to every element of this NonEmptyArray
.
Displays all elements of this NonEmptyArray
in a string using start, end, and separator strings.
Displays all elements of this NonEmptyArray
in a string using start, end, and separator strings.
the starting string.
the separator string.
the ending string.
a string representation of this NonEmptyArray
. The resulting string begins with the string start
and ends with the string
end
. Inside, In the resulting string, the result of invoking toString
on all elements of this NonEmptyArray
are
separated by the string sep
.
Displays all elements of this NonEmptyArray
in a string using a separator string.
Displays all elements of this NonEmptyArray
in a string using a separator string.
the separator string
a string representation of this NonEmptyArray
. In the resulting string, the result of invoking toString
on all elements of this
NonEmptyArray
are separated by the string sep
.
Displays all elements of this NonEmptyArray
in a string.
Displays all elements of this NonEmptyArray
in a string.
a string representation of this NonEmptyArray
. In the resulting string, the result of invoking toString
on all elements of this
NonEmptyArray
follow each other without any separator string.
Returns true
to indicate this NonEmptyArray
, like all NonEmptyArray
s, is non-empty.
Returns true
to indicate this NonEmptyArray
, like all NonEmptyArray
s, is non-empty.
true
A copy of this NonEmptyArray
with an element value appended until a given target length is reached.
A copy of this NonEmptyArray
with an element value appended until a given target length is reached.
the target length
he padding value
a new NonEmptyArray
consisting of all elements of this NonEmptyArray
followed by the minimal number of occurrences
of elem
so that the resulting NonEmptyArray
has a length of at least len
.
Produces a new NonEmptyArray
where a slice of elements in this NonEmptyArray
is replaced by another NonEmptyArray
Produces a new NonEmptyArray
where a slice of elements in this NonEmptyArray
is replaced by another NonEmptyArray
the index of the first replaced element
the NonEmptyArray
whose elements should replace a slice in this NonEmptyArray
the number of elements to drop in the original NonEmptyArray
Iterates over distinct permutations.
Iterates over distinct permutations.
Here's an example:
NonEmptyArray('a', 'b', 'b').permutations.toArray = Array(NonEmptyArray(a, b, b), NonEmptyArray(b, a, b), NonEmptyArray(b, b, a))
an iterator that traverses the distinct permutations of this NonEmptyArray
.
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.
the predicate used to test elements.
the length of the longest prefix of this NonEmptyArray
such that every element
of the segment satisfies the predicate p
.
The result of multiplying all the elements of this NonEmptyArray
.
The result of multiplying all the elements of this NonEmptyArray
.
This method can be invoked for any NonEmptyArray[T]
for which an implicit Numeric[T]
exists.
the product of all elements
Reduces the elements of this NonEmptyArray
using the specified associative binary operator.
Reduces the elements of this NonEmptyArray
using the specified associative binary operator.
The order in which operations are performed on elements is unspecified and may be nondeterministic.
a type parameter for the binary operator, a supertype of T.
a binary operator that must be associative.
the result of applying reduce operator op
between all the elements of this NonEmptyArray
.
Applies a binary operator to all elements of this NonEmptyArray
, going left to right.
Applies a binary operator to all elements of this NonEmptyArray
, going left to right.
the result type of the binary operator.
the binary operator.
the result of inserting op
between consecutive elements of this NonEmptyArray
, going left to right:
op(...op(op(x_1, x_2), x_3), ..., x_n)where x1, ..., xn are the elements of this
NonEmptyArray
.Applies a binary operator to all elements of this NonEmptyArray
, going left to right, returning the result in a Some
.
Applies a binary operator to all elements of this NonEmptyArray
, going left to right, returning the result in a Some
.
the result type of the binary operator.
the binary operator.
a Some
containing the result of reduceLeft(op)
Applies a binary operator to all elements of this NonEmptyArray
, going right to left.
Applies a binary operator to all elements of this NonEmptyArray
, going right to left.
the result of the binary operator
the binary operator
the result of inserting op
between consecutive elements of this NonEmptyArray
, going right to left:
op(x_1, op(x_2, ... op(x_{n-1}, x_n)...))where x1, ..., xn are the elements of this
NonEmptyArray
.Applies a binary operator to all elements of this NonEmptyArray
, going right to left, returning the result in a Some
.
Applies a binary operator to all elements of this NonEmptyArray
, going right to left, returning the result in a Some
.
the result of the binary operator
the binary operator
a Some
containing the result of reduceRight(op)
Returns new NonEmptyArray
with elements in reverse order.
Returns new NonEmptyArray
with elements in reverse order.
a new NonEmptyArray
with all elements of this NonEmptyArray
in reversed order.
An iterator yielding elements in reverse order.
An iterator yielding elements in reverse order.
Note: nonEmptyArray.reverseIterator
is the same as nonEmptyArray.reverse.iterator
, but might be more efficient.
an iterator yielding the elements of this NonEmptyArray
in reversed order
Builds a new NonEmptyArray
by applying a function to all elements of this NonEmptyArray
and collecting the results in reverse order.
Builds a new NonEmptyArray
by applying a function to all elements of this NonEmptyArray
and collecting the results in reverse order.
Note: nonEmptyArray.reverseMap(f)
is the same as nonEmptyArray.reverse.map(f)
, but might be more efficient.
the element type of the returned NonEmptyArray
.
the function to apply to each element.
a new NonEmptyArray
resulting from applying the given function f
to each element of this NonEmptyArray
and collecting the results in reverse order.
Checks if the given NonEmptyArray
contains the same elements in the same order as this NonEmptyArray
.
Checks if the given NonEmptyArray
contains the same elements in the same order as this NonEmptyArray
.
the NonEmptyArray
with which to compare
true
, if both this and the given NonEmptyArray
contain the same elements
in the same order, false
otherwise.
Checks if the given Every
contains the same elements in the same order as this NonEmptyArray
.
Checks if the given Every
contains the same elements in the same order as this NonEmptyArray
.
the Every
with which to compare
true
, if both this and the given Every
contain the same elements
in the same order, false
otherwise.
Checks if the given GenIterable
contains the same elements in the same order as this NonEmptyArray
.
Checks if the given GenIterable
contains the same elements in the same order as this NonEmptyArray
.
the GenIterable
with which to compare
true
, if both this NonEmptyArray
and the given GenIterable
contain the same elements
in the same order, false
otherwise.
Computes a prefix scan of the elements of this NonEmptyArray
.
Computes a prefix scan of the elements of this NonEmptyArray
.
Note: The neutral element z may be applied more than once.
Here are some examples:
NonEmptyArray(1, 2, 3).scan(0)(_ + _) == NonEmptyArray(0, 1, 3, 6) NonEmptyArray(1, 2, 3).scan("z")(_ + _.toString) == NonEmptyArray("z", "z1", "z12", "z123")
a type parameter for the binary operator, a supertype of T, and the type of the resulting NonEmptyArray
.
a neutral element for the scan 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.)
a binary operator that must be associative
a new NonEmptyArray
containing the prefix scan of the elements in this NonEmptyArray
Produces a NonEmptyArray
containing cumulative results of applying the operator going left to right.
Produces a NonEmptyArray
containing cumulative results of applying the operator going left to right.
Here are some examples:
NonEmptyArray(1, 2, 3).scanLeft(0)(_ + _) == NonEmptyArray(0, 1, 3, 6) NonEmptyArray(1, 2, 3).scanLeft("z")(_ + _) == NonEmptyArray("z", "z1", "z12", "z123")
the result type of the binary operator and type of the resulting NonEmptyArray
the start value.
the binary operator.
a new NonEmptyArray
containing the intermediate results of inserting op
between consecutive elements of this NonEmptyArray
,
going left to right, with the start value, z
, on the left.
Produces a NonEmptyArray
containing cumulative results of applying the operator going right to left.
Produces a NonEmptyArray
containing cumulative results of applying the operator going right to left.
Here are some examples:
NonEmptyArray(1, 2, 3).scanRight(0)(_ + _) == NonEmptyArray(6, 5, 3, 0) NonEmptyArray(1, 2, 3).scanRight("z")(_ + _) == NonEmptyArray("123z", "23z", "3z", "z")
the result of the binary operator and type of the resulting NonEmptyArray
the start value
the binary operator
a new NonEmptyArray
containing the intermediate results of inserting op
between consecutive elements of this NonEmptyArray
,
going right to left, with the start value, z
, on the right.
Computes length of longest segment whose elements all satisfy some predicate.
Computes length of longest segment whose elements all satisfy some predicate.
the predicate used to test elements.
the index where the search starts.
The size of this NonEmptyArray
.
The size of this NonEmptyArray
.
Note: length
and size
yield the same result, which will be >
= 1.
the number of elements in this NonEmptyArray
.
Groups elements in fixed size blocks by passing a “sliding window” over them (as opposed to partitioning them, as is done in grouped.),
moving the sliding window by a given step
each time.
Groups elements in fixed size blocks by passing a “sliding window” over them (as opposed to partitioning them, as is done in grouped.),
moving the sliding window by a given step
each time.
the number of elements per group
the distance between the first elements of successive groups
an iterator producing NonEmptyArray
s of size size
, except the last and the only element will be truncated
if there are fewer elements than size
.
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.)
the number of elements per group
an iterator producing NonEmptyArray
s of size size
, except the last and the only element will be truncated
if there are fewer elements than size
.
Sorts this NonEmptyArray
according to the Ordering
of the result of applying the given function to every element.
Sorts this NonEmptyArray
according to the Ordering
of the result of applying the given function to every element.
the target type of the transformation f
, and the type where the Ordering
ord
is defined.
the transformation function mapping elements to some other domain U
.
the ordering assumed on domain U
.
a NonEmptyArray
consisting of the elements of this NonEmptyArray
sorted according to the Ordering
where
x < y if ord.lt(f(x), f(y))
.
Sorts this NonEmptyArray
according to a comparison function.
Sorts this NonEmptyArray
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 NonEmptyArray
as in the original.
a NonEmptyArray
consisting of the elements of this NonEmptyArray
sorted according to the comparison function lt
.
Sorts this NonEmptyArray
according to an Ordering
.
Sorts this NonEmptyArray
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 NonEmptyArray
as in the original.
the Ordering
to be used to compare elements.
a NonEmptyArray
consisting of the elements of this NonEmptyArray
sorted according to the comparison function lt
.
Indicates whether this NonEmptyArray
starts with the given NonEmptyArray
at the given index.
Indicates whether this NonEmptyArray
starts with the given NonEmptyArray
at the given index.
the NonEmptyArray
slice to look for in this NonEmptyArray
the index at which this NonEmptyArray
is searched.
true
if this NonEmptyArray
has that
as a slice at the index offset
, false
otherwise.
Indicates whether this NonEmptyArray
starts with the given Every
at the given index.
Indicates whether this NonEmptyArray
starts with the given Every
at the given index.
the Every
slice to look for in this NonEmptyArray
the index at which this NonEmptyArray
is searched.
true
if this NonEmptyArray
has that
as a slice at the index offset
, false
otherwise.
Indicates whether this NonEmptyArray
starts with the given NonEmptyArray
.
Indicates whether this NonEmptyArray
starts with the given NonEmptyArray
.
the NonEmptyArray
to test
true
if this collection has that
as a prefix, false
otherwise.
Indicates whether this NonEmptyArray
starts with the given Every
.
Indicates whether this NonEmptyArray
starts with the given Every
.
the Every
to test
true
if this collection has that
as a prefix, false
otherwise.
Indicates whether this NonEmptyArray
starts with the given GenSeq
at the given index.
Indicates whether this NonEmptyArray
starts with the given GenSeq
at the given index.
the GenSeq
slice to look for in this NonEmptyArray
the index at which this NonEmptyArray
is searched.
true
if this NonEmptyArray
has that
as a slice at the index offset
, false
otherwise.
Indicates whether this NonEmptyArray
starts with the given GenSeq
.
Indicates whether this NonEmptyArray
starts with the given GenSeq
.
the GenSeq
slice to look for in this NonEmptyArray
true
if this NonEmptyArray
has that
as a prefix, false
otherwise.
Returns "NonEmptyArray"
, the prefix of this object's toString
representation.
Returns "NonEmptyArray"
, the prefix of this object's toString
representation.
the string "NonEmptyArray"
The result of summing all the elements of this NonEmptyArray
.
The result of summing all the elements of this NonEmptyArray
.
This method can be invoked for any NonEmptyArray[T]
for which an implicit Numeric[T]
exists.
the sum of all elements
Converts this NonEmptyArray
to a mutable buffer.
Converts this NonEmptyArray
to a mutable buffer.
a buffer containing all elements of this NonEmptyArray
.
Converts this NonEmptyArray
to an immutable IndexedSeq
.
Converts this NonEmptyArray
to an immutable IndexedSeq
.
an immutable IndexedSeq
containing all elements of this NonEmptyArray
.
Converts this NonEmptyArray
to an iterable collection.
Converts this NonEmptyArray
to an iterable collection.
an Iterable
containing all elements of this NonEmptyArray
.
Returns an Iterator
over the elements in this NonEmptyArray
.
Returns an Iterator
over the elements in this NonEmptyArray
.
an Iterator
containing all elements of this NonEmptyArray
.
Converts this NonEmptyArray
to a list.
Converts this NonEmptyArray
to a list.
a list containing all elements of this NonEmptyArray
. A ClassTag
must be available for the element type of this NonEmptyArray
.
Converts this NonEmptyArray
to a map.
Converts this NonEmptyArray
to a map.
This method is unavailable unless the elements are members of Tuple2
, each ((K, V))
becoming a key-value pair
in the map. Duplicate keys will be overwritten by later keys.
a map of type immutable.Map[K, V]
containing all key/value pairs of type (K, V)
of this NonEmptyArray
.
Converts this NonEmptyArray
to an immutable IndexedSeq
.
Converts this NonEmptyArray
to an immutable IndexedSeq
.
an immutable IndexedSeq
containing all elements of this NonEmptyArray
.
Converts this NonEmptyArray
to a set.
Converts this NonEmptyArray
to a set.
a set containing all elements of this NonEmptyArray
.
Converts this NonEmptyArray
to a stream.
Converts this NonEmptyArray
to a stream.
a stream containing all elements of this NonEmptyArray
.
Returns a string representation of this NonEmptyArray
.
Returns a string representation of this NonEmptyArray
.
the string "NonEmptyArray"
followed by the result of invoking toString
on
this NonEmptyArray
's elements, surrounded by parentheses.
Converts this NonEmptyArray
to a Vector
.
Converts this NonEmptyArray
to a Vector
.
a Vector
containing all elements of this NonEmptyArray
.
Converts this NonEmptyArray
of pairs into two NonEmptyArray
s of the first and second half of each pair.
Converts this NonEmptyArray
of pairs into two NonEmptyArray
s of the first and second half of each pair.
the type of the first half of the element pairs
the type of the second half of the element pairs
an implicit conversion that asserts that the element type of this NonEmptyArray
is a pair.
a pair of NonEmptyArray
s, containing the first and second half, respectively, of each element pair of this NonEmptyArray
.
Converts this NonEmptyArray
of triples into three NonEmptyArray
s of the first, second, and and third element of each triple.
Converts this NonEmptyArray
of triples into three NonEmptyArray
s of the first, second, and and third element of each triple.
the type of the first member of the element triples
the type of the third member of the element triples
an implicit conversion that asserts that the element type of this NonEmptyArray
is a triple.
a triple of NonEmptyArray
s, containing the first, second, and third member, respectively, of each element triple of this NonEmptyArray
.
A copy of this NonEmptyArray
with one single replaced element.
A copy of this NonEmptyArray
with one single replaced element.
the position of the replacement
the replacing element
a copy of this NonEmptyArray
with the element at position idx
replaced by elem
.
IndexOutOfBoundsException
if the passed index is greater than or equal to the length of this NonEmptyArray
Returns a NonEmptyArray
formed from this NonEmptyArray
and an iterable collection by combining corresponding
elements in pairs.
Returns a NonEmptyArray
formed from this NonEmptyArray
and an iterable collection by combining corresponding
elements in pairs. If one of the two collections is shorter than the other, placeholder elements will be used to extend the
shorter collection to the length of the longer.
the Iterable
providing the second half of each result pair
the element to be used to fill up the result if this NonEmptyArray
is shorter than that
Iterable
.
a new NonEmptyArray
containing pairs consisting of corresponding elements of this NonEmptyArray
and that
. The
length of the returned collection is the maximum of the lengths of this NonEmptyArray
and that
. If this NonEmptyArray
is shorter than that
, thisElem
values are used to pad the result. If that
is shorter than this
NonEmptyArray
, thatElem
values are used to pad the result.
Zips this NonEmptyArray
with its indices.
Zips this NonEmptyArray
with its indices.
A new NonEmptyArray
containing pairs consisting of all elements of this NonEmptyArray
paired with their index. Indices start at 0.
A non-empty array: an ordered, mutable, non-empty collection of elements with
IndexedSeq
performance characteristics.The purpose of
NonEmptyArray
is to allow you to express in a type that anArray
is non-empty, thereby eliminating the need for (and potential exception from) a run-time check for non-emptiness. For a non-empty immutable sequence withIndexedSeq
performance, seeEvery
.Constructing
NonEmptyArray
sYou can construct a
NonEmptyArray
by passing one or more elements to theNonEmptyArray.apply
factory method:Working with
NonEmptyArray
sNonEmptyArray
does not extend Scala'sSeq
orTraversable
traits because these require that implementations may be empty. For example, if you invoketail
on aSeq
that contains just one element, you'll get an emptySeq
:On the other hand, many useful methods exist on
Seq
that when invoked on a non-emptySeq
are guaranteed to not result in an emptySeq
. For convenience,NonEmptyArray
defines a method corresponding to every suchSeq
method. Here are some examples:NonEmptyArray
does not currently define any methods corresponding toSeq
methods that could result in an emptySeq
. However, an implicit converison fromNonEmptyArray
toArray
is defined in theNonEmptyArray
companion object that will be applied if you attempt to call one of the missing methods. As a result, you can invokefilter
on anNonEmptyArray
, even thoughfilter
could result in an empty sequence—but the result type will beArray
instead ofNonEmptyArray
:You can use
NonEmptyArray
s infor
expressions. The result will be anNonEmptyArray
unless you use a filter (anif
clause). Because filters are desugared to invocations offilter
, the result type will switch to aArray
at that point. Here are some examples:the type of elements contained in this
NonEmptyArray