Question

160

How to remove event listener in Chrome extension

rated 0 times [ 166] [ 6] / answers: 1 / hits: 28009 / 12 Years ago, sat, may 5, 2012, 12:00:00

I am trying to remove the onRequest listener added by chrome.extension.onRequest.addListener after a request is made, like this:

chrome.extension.onRequest.addListener(

    function(request){

        chrome.extension.onRequest.removeListener();

        other_function(request);

    }

);

The problem is that I don't know if this works or not. I tried chrome.extension.onRequest.hasListener, which seems not to give the right answer, so I am wondering if there are some other ways to remove the onRequest listener or check if the listener exists or not.

Thanks!

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monicag

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3 Years ago

answered 12 Years ago jennie · Accepted Answer

removeListener takes an argument. You need to name the listener function and then remove it by name:

function doStuff(request){

    chrome.extension.onRequest.removeListener(doStuff);

    other_function(request);

}

chrome.extension.onRequest.addListener(doStuff);

Or, more succinctly:

chrome.extension.onRequest.addListener(

    function doStuff(request){

        chrome.extension.onRequest.removeListener(doStuff);

        other_function(request);

    }

);