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  1. Web
  2. JavaScript
  3. Reference
  4. Standard built-in objects
  5. TypedArray
  6. entries()

TypedArray.prototype.entries()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨September 2016⁩.

Theentries() method ofTypedArray instances returns a newarray iterator object that contains the key/value pairs for each index in the typed array. This method has the same algorithm asArray.prototype.entries().

Try it

const uint8 = new Uint8Array([10, 20, 30, 40, 50]);const eArr = uint8.entries();eArr.next();eArr.next();console.log(eArr.next().value);// Expected output: Array [2, 30]

Syntax

js
entries()

Parameters

None.

Return value

A newiterable iterator object.

Description

SeeArray.prototype.entries() for more details. This method is not generic and can only be called on typed array instances.

Examples

Iteration using for...of loop

js
const array = new Uint8Array([10, 20, 30, 40, 50]);const arrayEntries = arr.entries();for (const element of arrayEntries) {  console.log(element);}

Alternative iteration

js
const array = new Uint8Array([10, 20, 30, 40, 50]);const arrayEntries = arr.entries();console.log(arrayEntries.next().value); // [0, 10]console.log(arrayEntries.next().value); // [1, 20]console.log(arrayEntries.next().value); // [2, 30]console.log(arrayEntries.next().value); // [3, 40]console.log(arrayEntries.next().value); // [4, 50]

Specifications

Specification
ECMAScript® 2026 Language Specification
# sec-%typedarray%.prototype.entries

Browser compatibility

See also

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