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javascriptweb-worker

How to debug worker?

I have code with Worker in JavaScript

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

worker.addEventListener('message', function(e) {
  oDefer.resolve();                                                                                
}, false);

worker.postMessage({
  "data": allData                                                                        
});

return oDefer.promise;

How I can debug the indexWorker.js? I looked on the web and I saw that I need to do this in the Chrome the developer tool, however the option of the worker doesn't exist on Chrome that I can find.

Could you please advise me ?

Solution

  • The simplest way is to add 

    debugger;

    To a line in your code. If dev tool is open, it will stop the code and open the debugger. See http://jsfiddle.net/mendesjuan/YUKSu/82/

    You can add debugger to the file that is running as a webworker (indexWorker.js) or to the code responding to its messages.