The TypedArray.of() method creates a new typed array with a variable number of arguments. This method is nearly the same as Array.of().
Syntax
TypedArray.of(element0[, element1[, ...[, elementN]]])
where TypedArray is one of:
Int8Array
Uint8Array
Uint8ClampedArray
Int16Array
Uint16Array
Int32Array
Uint32Array
Float32Array
Float64Array
Parameters
elementN- Elements of which to create the typed array.
Return value
A new TypedArray instance.
Description
Some subtle distinctions between Array.of() and TypedArray.of():
- If the
thisvalue passed toTypedArray.ofis not a constructor,TypedArray.ofwill throw aTypeError, whereArray.ofdefaults to creating a newArray. TypedArray.ofuses[[Put]]whereArray.ofuses[[DefineProperty]]. Hence, when working withProxyobjects, it callshandler.setto create new elements rather thanhandler.defineProperty.
Examples
Uint8Array.of(1); // Uint8Array [ 1 ]
Int8Array.of("1", "2", "3"); // Int8Array [ 1, 2, 3 ]
Float32Array.of(1, 2, 3); // Float32Array [ 1, 2, 3 ]
Int16Array.of(undefined); // IntArray [ 0 ]
Specifications
| Specification | Status | Comment |
|---|---|---|
| ECMAScript 2015 (6th Edition, ECMA-262) The definition of '%TypedArray%.of' in that specification. |
Standard | Initial definition. |
| ECMAScript 2017 Draft (ECMA-262) The definition of '%TypedArray%.of' in that specification. |
Draft |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | 45.0 | 38 (38) | No support | No support | No support |
| Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | No support | No support | 38.0 (38) | No support | No support | No support |