如何从外部阻止 Web Worker 中的 JavaScript？

Question

I am calling a JavaScript function through a onclick event from my webpage, which on event will start running synchronously in my Worker . I want to know if there is any way to stop that JS function after getting the desired result through onclick event ie manually from my webpage.

Answer 1

So I wanted to know if there is any way to stop that js function after getting the desired result...

If you have the desired result, the web worker shouldn't still be running. It should terminate (or go dormant) after sending the result to the main page. It might still have a message handler registered (so you can tell it to do something again), but it shouldn't still be running .

How to stop Javascript in webworker from outside?

If the web worker is continuously running code such as a tight loop that never yields back to the browser, you can terminate it via the terminate method on the Worker instance:

Where you start the worker:

var worker = new Worker("yourscript.js");

Later, when you want to kill it:

worker.terminate();

If the worker yields back to the browser periodically (via setTimeout , or just because it's waiting for a message with the next thing to work on), you can post it an application-specific message telling it to clean up and terminate.