the writing
thread has stored a new value, it will be notified by the writing thread and
return the new value (123).

js

    
    
    Atomics.wait(int32, 0, 0);
    console.log(int32[0]); // 123
    

A writing thread stores a new value and notifies the waiting thread once it
has written:

js

    
    
    console.log(int32[0]); // 0;
    Atomics.store(int32, 0, 123);
    Atomics.notify(int32, 0, 1);
    

##  Specifications

Specification  
---  
[ ECMAScript Language Specification  
#  sec-atomics-object  ](https://tc39.es/ecma262/multipage/structured-
data.html#sec-atomics-object)  
  
##  Browser compatibility

BCD tables only load in the browser  with JavaScript enabled. Enable
JavaScript to view data.

##  See also

  * [ ` ArrayBuffer ` ](/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer)
  * [ JavaScript typed arrays ](/en-US/docs/Web/JavaScript/Guide/Typed_arrays) guide 
  * [ Web Workers ](/en-US/docs/Web/API/Web_Workers_API)
  * [ Shared Memory â a brief tutorial ](https://github.com/tc39/proposal-ecmascript-sharedmem/blob/main/TUTORIAL.md) in the TC39 ecmascript-sharedmem proposal 
  * [ A Taste of JavaScript's New Parallel Primitives ](https://hacks.mozilla.org/2016/05/a-taste-of-javascripts-new-parallel-primitives/) on hacks.mozilla.org (2016) 

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