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Showing content from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Int32Array below:

Int32Array - JavaScript | MDN

Constructor

Int32Array(): Creates a new Int32Array object.

Static properties

Also inherits static properties from its parent TypedArray.

Int32Array.BYTES_PER_ELEMENT: Returns a number value of the element size. 4 in the case of Int32Array.

Static methods

Inherits static methods from its parent TypedArray.

Instance properties

Also inherits instance properties from its parent TypedArray.

These properties are defined on Int32Array.prototype and shared by all Int32Array instances.

Int32Array.prototype.BYTES_PER_ELEMENT: Returns a number value of the element size. 4 in the case of a Int32Array.
Int32Array.prototype.constructor: The constructor function that created the instance object. For Int32Array instances, the initial value is the Int32Array constructor.

Instance methods

Inherits instance methods from its parent TypedArray.

Examples Different ways to create an Int32Array

// From a length
const int32 = new Int32Array(2);
int32[0] = 42;
console.log(int32[0]); // 42
console.log(int32.length); // 2
console.log(int32.BYTES_PER_ELEMENT); // 4

// From an array
const x = new Int32Array([21, 31]);
console.log(x[1]); // 31

// From another TypedArray
const y = new Int32Array(x);
console.log(y[0]); // 21

// From an ArrayBuffer
const buffer = new ArrayBuffer(32);
const z = new Int32Array(buffer, 4, 4);
console.log(z.byteOffset); // 4

// From an iterable
const iterable = (function* () {
  yield* [1, 2, 3];
})();
const int32FromIterable = new Int32Array(iterable);
console.log(int32FromIterable);
// Int32Array [1, 2, 3]

Specifications Browser compatibility

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