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javascript Programming Glossary: evenHow do JavaScript closures work? http://stackoverflow.com/questions/111102/how-do-javascript-closures-work also alert 16 because bar can still refer to x and tmp even though it is no longer directly inside the scope. However since..
Access / process (nested) objects, arrays or JSON http://stackoverflow.com/questions/11922383/access-process-nested-objects-arrays-or-json use dot notation again to access the name property. So we eventually get var item_name data.items 1 .name What if the property.. which are both objects. In Chrome console the objects can even be expanded and inspected immediately. console.log data.items..
Reference: Why does the PHP (or other server side) code in my Javascript not work? http://stackoverflow.com/questions/13840429/reference-why-does-the-php-or-other-server-side-code-in-my-javascript-not-wor All PHP code is executed on the server before the client even starts executing any of the Javascript. There's no PHP code..
jQuery Mobile: document ready vs page events http://stackoverflow.com/questions/14468659/jquery-mobile-document-ready-vs-page-events Mobile document ready vs page events I am using JQuery Mobile and I am having trouble understanding.. between classic document ready and jQuery Mobile page events. Can someone tell me what is a real difference Why should.. then document .on 'pageinit' What is the order of page events transition from one page to another How can I send data from..
jQuery Mobile: Markup Enhancement of dynamically added content http://stackoverflow.com/questions/14550396/jquery-mobile-markup-enhancement-of-dynamically-added-content 'create' and ' data role page ' .page Also how can I prevent enhancement markup of check boxes only javascript jquery html5.. does this all means When page plugin dispatches a pageInit event which most widgets use to auto initialize themselves. it will.. Ajax and inject it into a page you can trigger the create event to handle the auto initialization for all the plugins contained..
Elegant workaround for JavaScript floating point number problem http://stackoverflow.com/questions/1458633/elegant-workaround-for-javascript-floating-point-number-problem numbers like 1 10 without realizing that they wouldn't even blink at the same error if it occurred with 1 3. If the first..
How do I “think in AngularJS” if I have a jQuery background? http://stackoverflow.com/questions/14994391/how-do-i-think-in-angularjs-if-i-have-a-jquery-background and apply s that are confusing and convoluted but they eventually get it working The problem is that in most cases that.. your view so you don't have to In jQuery we respond to events and then update content. Something like .ajax url ' myEndpoint.json'.. nothing we did here that needed jQuery at all Second even if we already have jQuery on our page there's no reason to use..
How to “properly” create a custom object in JavaScript? http://stackoverflow.com/questions/1595611/how-to-properly-create-a-custom-object-in-javascript that new Shape is ugly we're instantiating the base class even though no actual Shape is to be created. It happens to work.. cannot be inherited as it is in many languages. So even if your subclass adds nothing to the construction process it..
When is JavaScript's eval() not evil? http://stackoverflow.com/questions/197769/when-is-javascripts-eval-not-evil it's evil and rightly or wrongly I've always thought it is even more evil in JavaScript because the code to be evaluated might.. I presume that JS libraries use eval for this somewhere even if they run the JSON through a regex check first but when else.. use eval As several people have now pointed out it's not even necessary to use eval to parse JSON. So when is it OK to use..
http://stackoverflow.com/questions/500431/javascript-variable-scope scope inside as opposed to outside a function Or does it even matter Also where are the variables stored if they are defined.. foo Advanced prototype based scope resolution function Seven this.a 7 object .prototype.property loses to object .property.. loses to object .property in the lookup chain Seven.prototype.a 1 won't get reached because 'a' is set in the constructor..
How to include a JavaScript file in another JavaScript file? http://stackoverflow.com/questions/950087/how-to-include-a-javascript-file-in-another-javascript-file is definitely the best way to go. You can load the script even from a foreign server and it's clean as you use the browser.. I gave you. In summary for people in a hurry he uses en event to run a callback function when the script is loaded. So you.. script.type 'text javascript' script.src url Then bind the event to the callback function. There are several events for cross..
jQuery Mobile: document ready vs page events http://stackoverflow.com/questions/14468659/jquery-mobile-document-ready-vs-page-events 3 Use a jQuery Filter selector like this '#carousel div Event click ' .each function If click is not bind to #carousel div.. jQuery team no longer recommend its use and neither do I. Even though it can be tedious to hook and unhook events your code..
How do I “think in AngularJS” if I have a jQuery background? http://stackoverflow.com/questions/14994391/how-do-i-think-in-angularjs-if-i-have-a-jquery-background wrong . Think of the logger we programmed in section 3. Even if we put that in a directive we still want to do it the Angular..
Why I have to put all the script to index.html in jquery mobile http://stackoverflow.com/questions/15800121/why-i-have-to-put-all-the-script-to-index-html-in-jquery-mobile will be loaded everything else is going to be discarded. Even if you have more pages inside a BODY only first one is going..
How do you determine equality for two JavaScript objects? http://stackoverflow.com/questions/201183/how-do-you-determine-equality-for-two-javascript-objects is an iterative and recursive comparison of each member. Even then one has to ask what is the 'value' of a function share..
`new function()` with lower case “f” in JavaScript http://stackoverflow.com/questions/2274695/new-function-with-lower-case-f-in-javascript I haven't seen any reference to this technique anywhere. Even Douglas Crockford's JSLint complains about it weird construction...
http://stackoverflow.com/questions/280712/javascript-unicode character properties share improve this question Even though JavaScript operates on Unicode strings it does not consistently..
http://stackoverflow.com/questions/3146798/why-do-people-put-code-like-throw-1-dont-be-evil-and-for-in-front-of tag to get the data because XHR won't work cross domain. Even without the for how would the attacker get the data It's not.. ajax security json share improve this question Even without the for how would the attacker get the data Attacks..
Why doesn't JavaScript support multithreading? http://stackoverflow.com/questions/39879/why-doesnt-javascript-support-multithreading interpreter in the browser is a single thread AFAIK . Even Google Chrome will not let a single web page's Javacript run..
When does reflow happen in a DOM environment? http://stackoverflow.com/questions/510213/when-does-reflow-happen-in-a-dom-environment like offsetWidth or using methods like getComputedStyle . Even if the numbers are not used simply using either of these while..
Calling a JavaScript function returned from an Ajax response http://stackoverflow.com/questions/510779/calling-a-javascript-function-returned-from-an-ajax-response code returned by Ajax callback must be syntactically OK 2 Even if your function declaration is inserted into a script block.. and have it available during the whole page lifetime. Even if quite dummy this code explains the idea html body div id..
Set cursor position in html textbox http://stackoverflow.com/questions/512528/set-cursor-position-in-html-textbox could potentially be used for several different purposes. Even though my original purpose was somewhat impractical there is.. on the page when they receive focus... function addLoadEvent func if typeof window.onload 'function' window.onload func..
Does IE9 support console.log, and is it a real function? http://stackoverflow.com/questions/5472938/does-ie9-support-console-log-and-is-it-a-real-function is window.console.log defined in Internet Explorer 9 Even when window.console.log is defined window.console.log.apply..
Does using $this instead of $(this) provide a performance enhancement? http://stackoverflow.com/questions/5724400/does-using-this-instead-of-this-provide-a-performance-enhancement is declared in and will not conflict with other functions. Even better jQuery is designed to be used with chaining so take advantage..
What happened to console.log in IE8? http://stackoverflow.com/questions/690251/what-happened-to-console-log-in-ie8 explorer 8 console share improve this question Even better for fallback is this var alertFallback true if typeof..
JavaScript asynchronous return value / assignment with jQuery [duplicate] http://stackoverflow.com/questions/7779697/javascript-asynchronous-return-value-assignment-with-jquery be declared in the outer scope of the trackPage function. Even with this fix the concept still doesn't work. share improve..
Why is setTimeout(fn, 0) sometimes useful? http://stackoverflow.com/questions/779379/why-is-settimeoutfn-0-sometimes-useful element.index However this code wasn't working. Even though the field's selectedIndex was being set correctly the..
How to turn a String into a javascript function call? http://stackoverflow.com/questions/912596/how-to-turn-a-string-into-a-javascript-function-call clickedOnItem nodeId Some cool event handling code here Even later var fn window settings.functionName note that settings.functionName..
Max parallel http connections in a browser? http://stackoverflow.com/questions/985431/max-parallel-http-connections-in-a-browser so I don't run into the 2 connection limit. Is this true Even if that is true is there any limit to the number of active connections..
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