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This feature is well established and works across many devices and browser versions. Its been available across browsers since 2015 7.
Uint32Array (TypedArray) 32 .
DataView . 0 .
(, ) .
Uint32Array() Uint32Array .
Uint32Array.BYTES_PER_ELEMENT . Uint32Array 4 .
Uint32Array.name . Uint32Array "Uint32Array".
Uint32Array.prototype.BYTES_PER_ELEMENT . Uint32Array 4.
//
const uint32 = new Uint32Array(2);
uint32[0] = 42;
console.log(uint32[0]); // 42
console.log(uint32.length); // 2
console.log(uint32.BYTES_PER_ELEMENT); // 4
//
const x = new Uint32Array([21, 31]);
console.log(x[1]); // 31
// TypedArray
const y = new Uint32Array(x);
console.log(y[0]); // 21
// ArrayBuffer
const buffer = new ArrayBuffer(32);
const z = new Uint32Array(buffer, 4, 4);
console.log(z.byteOffset); // 4
//
const iterable = (function* () {
yield* [1, 2, 3];
})();
const uint32FromIterable = new Uint32Array(iterable);
console.log(uint32FromIterable);
// Uint32Array [1, 2, 3]
| Specification |
|---|
| ECMAScript 2027 LanguageSpecification # sec-typedarray-objects |
This page was last modified on 2026 7 15 by MDN contributors.
Uint32ArrayTypedArrayTypedArray.prototype.at()TypedArray.prototype.copyWithin()TypedArray.prototype.entries()TypedArray.prototype.every()TypedArray.prototype.fill()TypedArray.prototype.filter()TypedArray.prototype.find()TypedArray.prototype.findIndex()TypedArray.prototype.findLast()TypedArray.prototype.findLastIndex()TypedArray.prototype.forEach()includes()TypedArray.prototype.indexOf()TypedArray.prototype.join()TypedArray.prototype.keys()lastIndexOf()TypedArray.prototype.map()TypedArray.prototype.reduce()reduceRight()TypedArray.prototype.reverse()TypedArray.prototype.set()TypedArray.prototype.slice()TypedArray.prototype.some()TypedArray.prototype.sort()TypedArray.prototype.subarray()toLocaleString()TypedArray.prototype.toReversed()TypedArray.prototype.toSorted()TypedArray.prototype.toString()TypedArray.prototype.values()TypedArray.prototype.with()TypedArray.prototype[@@iterator]()Object/FunctionObject.prototype.__defineGetter__()Object.prototype.__defineSetter__()Object.prototype.__lookupGetter__()Object.prototype.__lookupSetter__()Object.prototype.hasOwnProperty()Object.prototype.isPrototypeOf()Object.prototype.propertyIsEnumerable()Object.prototype.toLocaleString()Object.prototype.toString()Object.prototype.valueOf()BigInt64ArrayBigUint64ArrayFloat16ArrayFloat32ArrayFloat64ArrayInt8ArrayInt16ArrayInt32ArrayUint8ArrayUint8ClampedArrayUint16ArrayYour blueprint for a better internet.
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