ECMAScript Cookbook

How to do it...

1. Open your command-line application and navigate to your workspace.
2. Create a new folder named 05-04-stop-workers-with-terminate.
3. Copy or create an index.html that loads and runs a main function from main.js.

4. Create a main.js with a function named onMessage that takes a message and workers argument, logs out the type and timeout properties of message.data, and calls terminate on all the workers:

// main.js 
function onComplete(message, workers) { 
  const { index, timeout } = message.data; 
  workers.map((w) => w.terminate()); 
 
  console.log( 
    'Result from worker (%s) after timeout (%s): %s', 
    index, 
    timeout 
  ); 
}  

5. Create a main function that creates multiple workers, sets the onMessage property with a function that passes all the ...