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PODo we need to unbind event listeners in directives when angular starts to destroy?
 

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  1. PODo we need to unbind event listeners in directives when angular starts to destroy?
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    <p>There is a heavy memory leak in my application but I haven't found out the causes, and here is the background.</p> <ul> <li>I am using AngularJS + JQuery(plugins)</li> <li><p>Many listeners are bound like the following:</p> <p>$(element).on("keyup", function() {});</p></li> </ul> <p><strong>So the question is</strong></p> <p>Do I need to unbind those listeners in directives by following?</p> <pre><code>scope.$on("$destroy", function() { $(element).off(); }); </code></pre> <p>BTW, how do you usually find out the memory leak in a web application? I use chrome's profile (see here <a href="https://developers.google.com/chrome-developer-tools/docs/heap-profiling">Profiling memory performance</a>) but I could not trace to the codes where memory leaks. Do you have any suggestions?</p> <p>Thanks a lot!</p>
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    1. COI don't think thats needed unless you are binding all the scopes to $rootScope.
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    2. COYou don't have to remove them, they usually are garbage collected. You may do want to remove listeners of the window though, like scroll or message events if the handler interacts with elements of the scope. See http://stackoverflow.com/questions/12528049/if-a-dom-element-is-removed-are-its-listeners-also-removed-from-memory
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