The static Atomics.store()
method stores a given value at the given position in the array and returns that value.
Atomics.store()
Try it
Syntax
Atomics.store(typedArray, index, value)
Parameters
-
typedArray
-
An integer typed array. One of
Int8Array
,Uint8Array
,Int16Array
,Uint16Array
,Int32Array
,Uint32Array
,BigInt64Array
, orBigUint64Array
. -
index
-
The position in the
typedArray
to store avalue
in. -
value
-
The number to store.
Return value
The value that has been stored.
Exceptions
- Throws a
TypeError
, iftypedArray
is not one of the allowed integer types. - Throws a
RangeError
, ifindex
is out of bounds in thetypedArray
.
Examples
Using store()
var sab = new SharedArrayBuffer(1024); var ta = new Uint8Array(sab); Atomics.store(ta, 0, 12); // 12
Specifications
Specification |
---|
ECMAScript Language Specification # sec-atomics.store |
Browser compatibility
Desktop | Mobile | Server | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | Deno | Node.js | |
store |
68
60-63
Chrome disabled
SharedArrayBuffer on January 5, 2018 to help reduce the efficacy of
speculative side-channel attacks. This was a temporary removal while mitigations were put in place.
|
79
16-17
Support was removed to mitigate
speculative execution side-channel attacks (Windows blog).
|
78
57
Support was disabled by default to mitigate
speculative execution side-channel attacks (Mozilla Security Blog).
55-57
46-55
|
No
|
No
|
15.2
Like
SharedArrayBuffer ,
Atomics is gated behind COOP/COEP. For more detail, read
Making your website "cross-origin isolated" using COOP and COEP.
10.1-11.1
|
60-63
Chrome disabled
SharedArrayBuffer on January 5, 2018 to help reduce the efficacy of
speculative side-channel attacks. This is intended as a temporary measure until other mitigations are in place.
|
60-63
Chrome disabled
SharedArrayBuffer on January 5, 2018 to help reduce the efficacy of
speculative side-channel attacks. This is intended as a temporary measure until other mitigations are in place.
|
57
Support was disabled by default to mitigate
speculative execution side-channel attacks (Mozilla Security Blog).
55-57
46-55
|
No
|
15.2
Like
SharedArrayBuffer ,
Atomics is gated behind COOP/COEP. For more detail, read
Making your website "cross-origin isolated" using COOP and COEP.
10.3-11.3
|
No
Chrome disabled
SharedArrayBuffer on January 5, 2018 to help reduce the efficacy of
speculative side-channel attacks. This is intended as a temporary measure until other mitigations are in place.
|
1.0
|
8.10.0
|
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/Atomics/store