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Int16Array() constructor

The Int16Array() constructor creates Int16Array objects. The contents are initialized to 0.

Syntax

js
new Int16Array()
new Int16Array(length)
new Int16Array(typedArray)
new Int16Array(object)

new Int16Array(buffer)
new Int16Array(buffer, byteOffset)
new Int16Array(buffer, byteOffset, length)

Note: Int16Array() can only be constructed with new. Attempting to call it without new throws a TypeError.

Parameters

Exceptions

Examples

Different ways to create an Int16Array

js
// From a length
const int16 = new Int16Array(2);
int16[0] = 42;
console.log(int16[0]); // 42
console.log(int16.length); // 2
console.log(int16.BYTES_PER_ELEMENT); // 2

// From an array
const x = new Int16Array([21, 31]);
console.log(x[1]); // 31

// From another TypedArray
const y = new Int16Array(x);
console.log(y[0]); // 21

// From an ArrayBuffer
const buffer = new ArrayBuffer(16);
const z = new Int16Array(buffer, 2, 4);
console.log(z.byteOffset); // 2

// From an iterable
const iterable = (function* () {
  yield* [1, 2, 3];
})();
const int16FromIterable = new Int16Array(iterable);
console.log(int16FromIterable);
// Int16Array [1, 2, 3]

Specifications

Browser compatibility

Desktop Mobile Server
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet WebView Android Deno Node.js
Int16Array 7 12 4 11.6 5.1 18 4 12 4.2 1.0 4 1.0 0.10.0
constructor_without_parameters 7 12 55 11.6 5.1 18 55 12 5 1.0 ≤37 1.0 0.10.0
iterable_allowed 39 14 52 26 10 39 52 26 10 4.0 39 1.0 4.0.0
new_required 7 14 44 15 5.1 18 44 14 5 1.0 ≤37 1.0 0.12.0

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Int16Array/Int16Array