Learn ECMAScript - Second Edition

Terminating from the worker script

Sometimes, it might be required to terminate a worker within the worker when the worker is performing some sort of async task whose duration can be variable. There is a method called close() available inside the worker for that purpose:

// myworker.jsaddEventListener('message', e => {    if(e.data.message == "doAjaxAndDie") {        fetch(...).then(data => {            postMessage(data);            close(); // or self.close();        });    }});