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TypedArray.prototype

The TypedArray.prototype property represents the prototype for TypedArray constructors.

Property attributes of `TypedArray.prototype`
Writable	no
Enumerable	no
Configurable	no

Description

TypedArray instances inherit from TypedArray.prototype. You can use the constructor's prototype object to add properties or methods to all TypedArray instances, where TypedArray is one of the typed array types.

See also the description about TypedArray for more information about inheritance.

Properties

TypedArray.prototype.constructor: Returns the function that created an instance's prototype. This is one the corresponding typed array type functions by default.
TypedArray.prototype.buffer Read only: Returns the ArrayBuffer referenced by the typed array. Fixed at construction time and thus read only.
TypedArray.prototype.byteLength Read only: Returns the length (in bytes) of the typed array. Fixed at construction time and thus read only.
TypedArray.prototype.byteOffset Read only: Returns the offset (in bytes) of the typed array from the start of its ArrayBuffer. Fixed at construction time and thus read only.
TypedArray.prototype.length Read only: Returns the number of elements held in the typed array. Fixed at construction time and thus read only.

Methods

TypedArray.prototype.copyWithin(): Copies a sequence of array elements within the array. See also Array.prototype.copyWithin().
TypedArray.prototype.entries(): Returns a new Array Iterator object that contains the key/value pairs for each index in the array. See also Array.prototype.entries().
TypedArray.prototype.every(): Tests whether all elements in the array pass the test provided by a function. See also Array.prototype.every().
TypedArray.prototype.fill(): Fills all the elements of an array from a start index to an end index with a static value. See also Array.prototype.fill().
TypedArray.prototype.filter(): Creates a new array with all of the elements of this array for which the provided filtering function returns true. See also Array.prototype.filter().
TypedArray.prototype.find(): Returns the found value in the array, if an element in the array satisfies the provided testing function or undefined if not found. See also Array.prototype.find().
TypedArray.prototype.findIndex(): Returns the found index in the array, if an element in the array satisfies the provided testing function or -1 if not found. See also Array.prototype.findIndex().
TypedArray.prototype.forEach(): Calls a function for each element in the array. See also Array.prototype.forEach().
TypedArray.prototype.includes(): Determines whether a typed array includes a certain element, returning true or false as appropriate. See also Array.prototype.includes().
TypedArray.prototype.indexOf(): Returns the first (least) index of an element within the array equal to the specified value, or -1 if none is found. See also Array.prototype.indexOf().
TypedArray.prototype.join(): Joins all elements of an array into a string. See also Array.prototype.join().
TypedArray.prototype.keys(): Returns a new Array Iterator that contains the keys for each index in the array. See also Array.prototype.keys().
TypedArray.prototype.lastIndexOf(): Returns the last (greatest) index of an element within the array equal to the specified value, or -1 if none is found. See also Array.prototype.lastIndexOf().
TypedArray.prototype.map(): Creates a new array with the results of calling a provided function on every element in this array. See also Array.prototype.map().
TypedArray.prototype.move() Unimplemented: Former non-standard version of TypedArray.prototype.copyWithin().
TypedArray.prototype.reduce(): Apply a function against an accumulator and each value of the array (from left-to-right) as to reduce it to a single value. See also Array.prototype.reduce().
TypedArray.prototype.reduceRight(): Apply a function against an accumulator and each value of the array (from right-to-left) as to reduce it to a single value. See also Array.prototype.reduceRight().
TypedArray.prototype.reverse(): Reverses the order of the elements of an array — the first becomes the last, and the last becomes the first. See also Array.prototype.reverse().
TypedArray.prototype.set(): Stores multiple values in the typed array, reading input values from a specified array.
TypedArray.prototype.slice(): Extracts a section of an array and returns a new array. See also Array.prototype.slice().
TypedArray.prototype.some(): Returns true if at least one element in this array satisfies the provided testing function. See also Array.prototype.some().
TypedArray.prototype.sort(): Sorts the elements of an array in place and returns the array. See also Array.prototype.sort().
TypedArray.prototype.subarray(): Returns a new TypedArray from the given start and end element index.
TypedArray.prototype.values(): Returns a new Array Iterator object that contains the values for each index in the array. See also Array.prototype.values().
TypedArray.prototype.toLocaleString(): Returns a localized string representing the array and its elements. See also Array.prototype.toLocaleString().
TypedArray.prototype.toString(): Returns a string representing the array and its elements. See also Array.prototype.toString().
TypedArray.prototype[@@iterator](): Returns a new Array Iterator object that contains the values for each index in the array.

Specifications

Specification	Status	Comment
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'TypedArray prototype' in that specification.	Standard	Initial definition.
ECMAScript Latest Draft (ECMA-262) The definition of 'TypedArray prototype' in that specification.	Draft

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	7	Yes	4	10	11.6	5.1

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	4	Yes	Yes	4	11.6	4.2	Yes

	Server
	Node.js
Basic support	Yes