Learn ECMAScript - Second Edition

Terminating from the main script

Similarly, you can terminate a worker from the main script, as well, if you wish to. After terminating, your worker instance can no longer be used to post messages to. It also kills any executing process in your worker:

// script.jsconst awesomeworker = new Worker('myworker.js');awesomeworker.addEventListener('message', e => {    if(e.data.message == "killme") {        awesomeworker.terminate(); // bye bye        console.log("Worker terminated");    }});

The myworker.js file for this would be:

// myworker.js// .. some workpostMessage({message: "killme"});

Killing from within the worker involves calling close(), while from the parent script it involves calling terminate() methods.