How to remove event listener in Chrome extension
23,747
Solution 1
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);
}
);
Solution 2
Another simple and straight forward approach when using anonymous functions:
chrome.runtime.onMessage.addListener(function(msg, sender, reply) {
chrome.runtime.onMessage.removeListener(arguments.callee);
});
Author by
chaohuang
Updated on July 09, 2022Comments
-
chaohuang almost 2 years
I am trying to remove the
onRequest
listener added bychrome.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 theonRequest
listener or check if the listener exists or not.Thanks!