For a project a developer sent us a .js file with code similar to this:  var myList = [1,2,3]; var a,b,c;  [a,b,c] = myList;   It works in Opera 10.30, Firefox 3.6.x but it's not ok for Opera 10.60 and Chrome.  It's just curiosity, do you h...
I hate this mess with the mouse buttons created by W3C an MS! I want to know if the left mouse button is pressed when I get a mousedown event.   I use this code  // Return true if evt carries left mouse button press function detectLeftButton(evt) {...
I have a web page that loads in an IFRAME, that runs correctly in IE and Firefox but not in Opera.  Which I hate, because I've been an Opera user for years.  And I wrote this thing. :-)  The problem is that Opera is not loading some of the JavaSc...
How can I check if the browser support HTML5 file upload (FormData object)?  var fd = new FormData();   Following the answer from this post, but the code does not return correct answer about the browser,  window.onload = function() {  if (!!window.Fi...
Is it possible to prevent opera mouse gestures for right button? I have web app on html5 and I decided to use right mouse button. But it doesnt work in opera, because opera has mouse gestures.     event.preventDefault(); // it doesn't work   May...
In JS security issue with Opera 11.01, after moving from server A to B I learned that opera has some "cross-network" protection.  I encountered the same js security problem and I found that Opera 11.10 (“Barracuda”) added a preference to...
Is there a way to disable (with CSS, JS or jQuery) double-click for a given element?  The problem with Opera is that it displays a menu when I click on an element too fast. Note that I know how to disable this for me. I'd like to be able to disab...
I am trying to open a print dialog box in Opera browser using javascript code as  <script language=javascript> window.print(); //This is working in IE, Netscape, Firefox, but not working in Opera </script>   where as if I am using the fol...
Why jquery .bind() not working in opera for cut copy paste events?  $(document).ready(function(){   $('#txtInput').bind("cut copy paste",function(e) {       e.preventDefault();   }); });...
I am updating a site that I've built for the Nintendo Wii, and am looking for a good way to debug the application.  Wii's browser (a version of Opera 9.3) does not have any sort of JavaScript console.  I was going to use one of the various re...

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