Atomics.store() - JavaScript | MDN
Syntax
js
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
typedArrayto store avaluein. value-
The number to store.
Return value
The value that has been stored.
Exceptions
TypeError-
Thrown if
typedArrayis not one of the allowed integer types. RangeError-
Thrown if
indexis out of bounds in thetypedArray.
Examples
Note that these examples cannot be run directly from the console or an arbitrary web page, because SharedArrayBuffer is not defined unless its security requirements are met.
Using Atomics.store()
js
// Create a SharedArrayBuffer with a size in bytes
const sab = new SharedArrayBuffer(1024);
const ta = new Uint8Array(sab);
console.log(Atomics.store(ta, 0, 12)); // 12, the new/current value
console.log(Atomics.load(ta, 0)); // 12, the new/current value
Specifications
| Specification |
|---|
| ECMAScript® 2027 Language Specification # sec-atomics.store |