A copy of this array with an element appended.

A copy of this array with all elements of an array appended.

A copy of this array with all elements of a collection appended.

Access the element at the given index.

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

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

concat creates a new array consisting of the elements in the this object on which it is called, followed in order by, for each argument, the elements of that argument (if the argument is an array) or the argument itself (if the argument is not an array).

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Copy elements of this array to a Scala array.

Fills the given array dest starting at index start with at most len values. Copying will stop once either all the elements of this array have been copied, or the end of the array is reached, or len elements have been copied.

Selects all the elements of this array ignoring the duplicates as determined by == after applying the transforming function f.

Tests whether this array ends with the given sequence.

Tests whether this array ends with the given array.

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

Flattens a two-dimensional array by concatenating all its rows into a single array.

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

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

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

Apply f to each element for its side effects.

Note: [U] parameter needed to help scalac's type inference.

Partitions this array into a map of arrays according to some discriminator function.

Partitions this array into a map of arrays according to a discriminator function key.

Each element in a group is transformed into a value of type B using the value function.

It is equivalent to groupBy(key).mapValues(_.map(f)), but more efficient.

case class User(name: String, age: Int)

def namesByAge(users: js.Array[User]): Map[Int, js.Array[String]] =
  users.groupMap(_.age)(_.name)

Tests whether this object has the specified property as a direct property.

Unlike js.Object.hasProperty, this method does not check down the object's prototype chain.

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Tests whether this object is in the prototype chain of another object.

The join() method joins all elements of an array into a string.

separator Specifies a string to separate each element of the array. The separator is converted to a string if necessary. If omitted, the array elements are separated with a comma.

ECMAScript 6 JavaScript Iterator for this Array.

The slice() method returns a shallow copy of a portion of an array.

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Length of the array.

Sets the length of the array. If the new length is bigger than the old length, created slots are filled with undefined (irrespective of the type argument A!). If the new length is smaller than the old length, the array is shrunk.

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

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

Returns a copy of this array with patched values.

Patching at negative indices is the same as patching starting at 0. Patching at indices at or larger than the length of the original array appends the patch to the end. If more values are replaced than actually exist, the excess is ignored.

The pop() method removes the last element from an array and returns that element.

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A copy of this array with an element prepended.

A copy of this array with all elements of an array prepended.

A copy of this array with all elements of a collection prepended.

Tests whether the specified property in an object can be enumerated by a call to js.Object.properties, with the exception of properties inherited through the prototype chain. If the object does not have the specified property, this method returns false.

MDN

The push() method mutates an array by appending the given elements and returning the new length of the array.

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The reverse() method reverses an array in place. The first array element becomes the last and the last becomes the first.

MDN

Computes a prefix scan of the elements of the array.

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

Produces an array containing cumulative results of applying the binary operator going left to right.

Produces an array containing cumulative results of applying the binary operator going right to left.

The shift() method removes the first element from an array and returns that element. This method changes the length of the array.

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The sort() method sorts the elements of an array in place and returns the array. The sort is not necessarily stable. The default sort order is lexicographic (not numeric).

If compareFunction is not supplied, elements are sorted by converting them to strings and comparing strings in lexicographic ("dictionary" or "telephone book," not numerical) order. For example, "80" comes before "9" in lexicographic order, but in a numeric sort 9 comes before 80.

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

Sorts this array 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.

Removes and adds new elements at a given index in the array.

This method first removes deleteCount elements starting from the index index, then inserts the new elements items at that index.

If index is negative, it is treated as that number of elements starting from the end of the array.

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

Tests whether this array contains the given array at a given index.

Tests whether this array starts with the given array.

Create a copy of this array as a Scala array.

Transposes a two dimensional array.

The unshift() method adds one or more elements to the beginning of an array and returns the new length of the array.

MDN

Converts an array of pairs into an array of first elements and an array of second elements.

Converts an array of triples into three arrays, one containing the elements from each position of the triple.

Set the element at the given index.

A copy of this array with one single replaced element.

Returns an array formed from this array 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.

Returns an array formed from this array 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.

Alias for addAll

Alias for prependAll

Alias for addOne

Alias for prepend

Alias for subtractAll

Alias for subtractOne