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notify method notifies the waiting agent to wake up. notify method can work only with Int32Array created using SharedArrayBuffer. It returns 0 in case of non-shared ArrayBuffer object is used.
Syntax
Atomics.notify(typedArray, index, count)
Parameters
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typedArray is a shared Int32Array.
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index is position in typedarray to wake up on.
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count is the number of sleeping agents to notify.
Return
Returns the number of agents woken up.
Exceptions
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TypeError in case passed array is not a integer typed array.
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RangeError if index passed is out of bound in typed array.
Example
Following is the code for implementing JavaScript Atomics −
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>Atomics Example</title> <style> .result { font-size: 20px; border: 1px solid black; } </style> </head> <body onLoad="operate();"> <h1>JavaScript Atomics Properties</h1> <div class="result"></div> <p>Atomics.store(arr, 0, 5)</p> <p>Atomics.notify(arr, 0, 1)</p> <script> function operate(){ let container = document.querySelector(".result"); // create a SharedArrayBuffer var buffer = new SharedArrayBuffer(16); var arr = new Int32Array(buffer); // Initialise element at zeroth position of array with 6 arr[0] = 6; container.innerHTML = Atomics.store(arr, 0, 5) + ''<br>'' + Atomics.notify(arr, 0, 1); } </script> </body> </html>
Output
Verify the result.
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