In Javascript, it is impossible for a function to return an asynchronous result. The function will usually return before the AJAX request is even made. You can always force your request to be syncronous with async: false, but that’s usually not a good idea because it will cause the browser to lock up while it … Read more
Yeah, using Deferred is the way to do that: function a() { var def = $.Deferred(); $.ajax(“http://url1”).done(function(data){ var requests = []; for (var i = 0; i < 2; i++) { requests.push(b()); } $.when.apply($, requests).then(function() { def.resolve(); }); }); return def.promise(); } // called by a() function b() { var def = $.Deferred(), requests = … Read more
This is not possible programmatically, due to the potential for a script to misuse the blocking or filtering of errors in the console to hide its activities from the Chrome user. You can of course filter messages in the console by Error, Warn, Debug. You can add your voice to those asking for more powerful … Read more
Use return false instead. You can see the code below working here. $(“a”).click(function() { return false; }); $(“.toolbar a”).click(function() { alert(“Do something”); }); As pointed by @raina77ow with this article, using return false is the same as calling event.preventDefault() and also event.stopPropagation(). As I had troubles without return false on some codes in the past, … Read more
It creates the DOM element on the fly, and appends that. jQuery()
Your handlers are being pushed into an array (readyList) for executing in order later, when the document is ready. They’re queued like this: readyList.push( fn ); And executed when ready like this: var fn, i = 0; while ( (fn = readyList[ i++ ]) ) { fn.call( document, jQuery ); } If the document is … Read more
CSS doesn’t have to be evaluated by the browser No. CSS is a language that you write your stylesheets in, which then have to be loaded, parsed and evaluated by the browser; see below. jQuery has to be evaluated by the browser Yes, because… jQuery goes through a scripting language Yes. jQuery is written in … Read more
jQuery returns prevObject if the DOM does not have the element for which jQuery is being run. You might see the element in your source at the run-time however, it is not not bound to the DOM and therefore, it shows prevObject. Try checking your js file again or else paste the code here.
NOTE: Hey, this was posted before ASP.Net MVC even hit 1.0, and I haven’t even looked at the framework since then. You should probably stop upvoting this. Do something like this: Response.StatusCode = (int)HttpStatusCode.BadRequest; actionResult = this.Content(“Error message here”); The status code should change depending on the nature of the error; generally, 4xx for user-generated … Read more
I’ll take a shot in the dark here since I can’t speak for the jQuery team of why I wouldn’t use JSDoc. JSDoc, at least the last time I checked, didn’t have any clean way to support method overloading (or parameter shifting…whatever name you want to give it here) and jQuery uses this all over … Read more