The set() method stores multiple values in the typed array, reading input values from a specified array.


typedarray.set(array[, offset])
typedarray.set(typedarray[, offset])


The array from which to copy values. All values from the source array are copied into the target array, unless the length of the source array plus the offset exceeds the length of the target array, in which case an exception is thrown.
If the source array is a typed array, the two arrays may share the same underlying ArrayBuffer; the JavaScript engine will intelligently copy the source range of the buffer to the destination range.
offset Optional
The offset into the target array at which to begin writing values from the source array. If this value is omitted, 0 is assumed (that is, the source array will overwrite values in the target array starting at index 0).


A RangeError, if the offset is set such as it would store beyond the end of the typed array.


Using set()

var buffer = new ArrayBuffer(8);
var uint8 = new Uint8Array(buffer);

uint8.set([1, 2, 3], 3);

console.log(uint8); // Uint8Array [ 0, 0, 0, 1, 2, 3, 0, 0 ]


ECMAScript (ECMA-262)
The definition of 'TypedArray.prototype.set' in that specification.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung InternetNode.js
setChrome Full support 7Edge Full support 14Firefox Full support 4IE Full support 10Opera Full support 11.6Safari Full support 5.1WebView Android Full support 4Chrome Android Full support 18Firefox Android Full support 4Opera Android Full support 12Safari iOS Full support 4.2Samsung Internet Android Full support 1.0nodejs Full support 0.10


Full support  
Full support

See also