I'm trying to remove an event listener inside of a listener definition:  canvas.addEventListener('click', function(event) {     click++;     if(click == 50) {         // remove this event listener here!     } // More code here ...   How...
I have an input and I'd simply like to add an event listener for it to activate a function when I press enter, when the input is focused. How do I do this with pure JS?  Right now I have:  HTML:          Enter your wage:<input type="text...
I'm trying to listen to custom event 'peakAhBoo' so I add the event listener to gBrowser and if no gBrowser is present then I add it to aDOMWindow (gist).  Code snippet:  loadIntoWindow: function (aDOMWindow, aXULWindow) {   if (!aDOMWind...
I want to execute a function inside a directive, whenever there is a state change in the parent scope.  The obvious way to achieve this is to use event broadcasts ($broadcast) and listeners ($on).  I am curious if using a $watch is an alternative to...
I would like to ask about scroll listener. I want to add scroll listener on body but it seems doesnt work.   $('body').scroll(function(){   console.log('SCROLL BODY'); });   I create basic example on fiddle, can someone explain me why...
According to the Notification.permission spec from MDN, we can check the current user permission for web notification.   However, is there any way to listen for this permission change? Something like this?  .on(Notification.permission, 'changed&#...
I try to create button which starts an alert after a click event. Something like that :       <body>     <div class="app">         <h1>Apache Cordova</h1>         <div id="deviceready" class="blink"&...
I'm trying to use the addCls() method for sprites to change the color of a scatter plot point once it has been clicked on. So far, my code changes the color of the highlight that comes up when you mouse-over the point but not the color of the poi...
I'm slowly digging in and learning redis in my spare time, and I am interested in the options available for creating a 'listener' for a website that subscribes to a channel, and updates a webpage as messages are received.   Now, from my o...

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