Uint32Array - JavaScript | MDN
Constructor
Uint32Array()-
Creates a new
Uint32Arrayobject.
Static properties
Also inherits static properties from its parent TypedArray.
Uint32Array.BYTES_PER_ELEMENT-
Returns a number value of the element size.
4in the case ofUint32Array.
Static methods
Inherits static methods from its parent TypedArray.
Instance properties
Also inherits instance properties from its parent TypedArray.
These properties are defined on Uint32Array.prototype and shared by all Uint32Array instances.
Uint32Array.prototype.BYTES_PER_ELEMENT-
Returns a number value of the element size.
4in the case of aUint32Array. Uint32Array.prototype.constructor-
The constructor function that created the instance object. For
Uint32Arrayinstances, the initial value is theUint32Arrayconstructor.
Instance methods
Inherits instance methods from its parent TypedArray.
Examples
Different ways to create a Uint32Array
js
// From a length
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
// From an array
const x = new Uint32Array([21, 31]);
console.log(x[1]); // 31
// From another TypedArray
const y = new Uint32Array(x);
console.log(y[0]); // 21
// From an ArrayBuffer
const buffer = new ArrayBuffer(32);
const z = new Uint32Array(buffer, 4, 4);
console.log(z.byteOffset); // 4
// From an iterable
const iterable = (function* () {
yield* [1, 2, 3];
})();
const uint32FromIterable = new Uint32Array(iterable);
console.log(uint32FromIterable);
// Uint32Array [1, 2, 3]
Specifications
| Specification |
|---|
| ECMAScript® 2027 Language Specification # sec-typedarray-objects |