Int32Array
Creates a new Int32Array typed array representing an array of 32-bit signed integers
Syntax
new Int32Array(length) or new Int32Array(buffer, byteOffset?, length?)Parameters
| Parameter | Type | Description |
|---|---|---|
| length | number | ArrayBuffer | ArrayLike<number> | Array length, buffer, or array-like source |
Return Value
A new Int32Array instance
Examples
const arr = new Int32Array([2147483647, -2147483648])
console.log(arr)const arr = new Int32Array(3)
arr.set([100, 200, 300])
console.log(arr)const sharedBuffer = new SharedArrayBuffer(16)
const sharedView = new Int32Array(sharedBuffer)
Atomics.store(sharedView, 0, 42)
console.log(Atomics.load(sharedView, 0)) // 42Understanding Int32Array
The Int32Array method in JavaScript creates a new Int32Array typed array representing an array of 32-bit signed integers. It belongs to the TypedArray object and is one of the most widely used methods for working with typedarray values in modern JavaScript and TypeScript applications.
The method signature is new Int32Array(length) or new Int32Array(buffer, byteOffset?, length?). It accepts 1 parameter: length. When called, it returns a new int32array instance. Understanding when and how to use Int32Array() helps you write more expressive, readable code.
Common use cases for Int32Array include data transformation, input validation, API response processing, and building reusable utility functions. It works well alongside related methods like uint32array-constructor, int16array-constructor, float32array-constructor, enabling you to chain operations together for complex data manipulation pipelines.
Browser support for Int32Array is excellent across all modern browsers including Chrome, Firefox, Safari, and Edge. It is also fully supported in Node.js and Deno. For older environments, transpilation with Babel or a polyfill may be needed.
Browser Compatibility
Supported in all modern browsers (Chrome, Firefox, Safari, Edge) and Node.js. Part of the ECMAScript standard.
Related Methods
Uint32ArrayCreates a new Uint32Array typed array representing an array of 32-bit unsigned integers
Int16ArrayCreates a new Int16Array typed array representing an array of 16-bit signed integers (range -32768 to 32767)
Float32ArrayCreates a new Float32Array typed array representing an array of 32-bit IEEE floating point numbers
More TypedArray Methods
Other methods in the TypedArray object
Related Tools
More TypedArray Methods
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