TypedArray.prototype.set()
The set()
method stores multiple values in the typed
array, reading input values from a specified array.
Syntax
set(array)
set(array, targetOffset)
set(typedarray)
set(typedarray, targetOffset)
Parameters
array
-
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 target offset exceeds the length of the target array, in which case an exception is thrown.
typedarray
-
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. targetOffset
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).
Exceptions
A RangeError
, if the targetOffset
is set such as it would store
beyond the end of the typed array.
Examples
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 ]
Specifications
Specification |
---|
ECMAScript Language Specification # sec-%typedarray%.prototype.set-array-offset |
Browser compatibility
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