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Int16Array() constructor

main Documentación oficial Licencia CC-BY-SA-2.5Descargado el 2026-08-02

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The Int16Array() constructor creates {{jsxref("Int16Array")}} objects. The contents are initialized to 0 unless initialization data is explicitly provided.

Syntax#

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 {{jsxref("TypeError")}}.

Parameters#

See TypedArray.

Exceptions#

See TypedArray.

Examples#

Different ways to create an Int16Array#

// 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#

{{Specifications}}

Browser compatibility#

{{Compat}}

See also#