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javascript Programming Glossary: outAccess / process (nested) objects, arrays or JSON http://stackoverflow.com/questions/11922383/access-process-nested-objects-arrays-or-json index as variable var x 5 var value arr x Wait... what about JSON JSON is a textual representation of data just like XML.. MDN and console.dir MDN help us doing this. For example output of the Chrome console console.log data.items Object Object.. of the object. The prototype chain and inheritance is out of scope for this answer though. Further reading material How..
Why does jQuery or a DOM method such as `getElementById` not find the element? http://stackoverflow.com/questions/14028959/why-does-jquery-or-a-dom-method-such-as-getelementbyid-not-find-the-element jQuery is not found because you have loaded the script without protocol and are running from file system script src somecdn.somewhere.com.. loaded properly. Use the browser's developer tools to find out whether the jQuery file was found and correct the URL if it..
jQuery Mobile: document ready vs page events http://stackoverflow.com/questions/14468659/jquery-mobile-document-ready-vs-page-events Pageinit event will be executed every time page is about be be loaded and shown for the first time. It will not trigger.. you take a look at an official documentation you will find out that pageinit will trigger ONLY once just like document ready.. hook and unhook events your code will be much faster without the .live method than with it. Instead of .live you should use..
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 have to start with what you want to accomplish then go about designing your application and then finally go about designing.. go about designing your application and then finally go about designing your view. 2. Don't augment jQuery with AngularJS.. This is really tempting when you're just starting out which is why I always recommend that new AngularJS developers..
Validate numbers in JavaScript - IsNumeric() http://stackoverflow.com/questions/18082/validate-numbers-in-javascript-isnumeric time ago I had to implement an IsNumeric function to find out if a variable contained a numeric value regardless its type..
Change an element's CSS class with JavaScript http://stackoverflow.com/questions/195951/change-an-elements-css-class-with-javascript class to an element To add a class to an element without removing affecting existing values append a space and the new.. from an element To remove a single class to an element without affecting other potential classes a simple regex replace is.. appropriate. The second step is to move the onclick event out of the HTML and into JavaScript for example using addEventListener..
When is JavaScript's eval() not evil? http://stackoverflow.com/questions/197769/when-is-javascripts-eval-not-evil it is OK to use eval As several people have now pointed out it's not even necessary to use eval to parse JSON. So when is..
array.contains(obj) in JavaScript http://stackoverflow.com/questions/237104/array-containsobj-in-javascript What is the most concise and efficient way to find out if a JavaScript array contains an obj This is the only way I..
How do I select text nodes with jQuery? http://stackoverflow.com/questions/298750/how-do-i-select-text-nodes-with-jquery thanks to @rabidsnail in the comments for pointing that out so here is non jQuery solution using a simple recursive function... whether or not whitespace text nodes are included in the output in jQuery they are automatically filtered out . function.. in the output in jQuery they are automatically filtered out . function getTextNodesIn node includeWhitespaceNodes var textNodes..
http://stackoverflow.com/questions/307179/what-is-javascripts-max-int-whats-the-highest-integer-value-a-number-can-go-t What's the highest Integer value a Number can go to without losing precision Is this defined by the language Is there a.. and shift operators operate on 32 bit ints. Test it out var x 9007199254740992 var y x x x 1 true y y 1 also true Arithmetic..
var functionName = function() {} vs function functionName() {} http://stackoverflow.com/questions/336859/var-functionname-function-vs-function-functionname uses two ways of declaring functions and I can't work out if there is a reason behind it or not. The two ways are var..
http://stackoverflow.com/questions/476679/preloading-images-with-jquery the top for what I want I know there are jQuery plugins out there that do this but they all seem a bit big in size I just..
http://stackoverflow.com/questions/5874652/prop-vs-attr for Boolean attributes . John Resig also blogged about it . I can see the difficulty they were in but still disagree.. meaning jQuery developers will have to learn a bit about the difference between properties and attributes. This is a.. jQuery developer and are confused by this whole business about properties and attributes you need to take a step back and learn..
Why is using the JavaScript eval function a bad idea? http://stackoverflow.com/questions/86513/why-is-using-the-javascript-eval-function-a-bad-idea to compile cache eval'd code Edit As @Jeff Walden points out in comments #3 is less true today than it was in 2008. However..
http://stackoverflow.com/questions/10668292/is-there-a-setting-on-google-analytics-to-suppress-use-of-cookies-for-users-who smoothly. Could look something like pseudo code if hasOptedOut hasNotExpressedCookiePreferenceYet functions you've defined.. now run the pageview that you 'missed' Opt Out With this approach you'd allow the user to opt out of tracking.. and a cookie to manage it in the future if hasOptedOut function you've defined elsewhere window 'ga disable UA XXXXXX..
Creating javascript function to destroy php session http://stackoverflow.com/questions/11060735/creating-javascript-function-to-destroy-php-session index.php onclick destroyphpsess class 'two' Log Out a echo var Now I need to define the javascript function. This..
Adding a custom button in row in jqGrid? http://stackoverflow.com/questions/11743983/adding-a-custom-button-in-row-in-jqgrid data 'A' 2 'B' 100 'status' In 'A' 1 'B' 200 'status' Out onCellSelect function rowid icol cellcontent e if icol 2 alert.. data 'A' 2 'B' 100 'status' In 'A' 1 'B' 200 'status' Out caption Demo of Custom Clickable Button in Row ver 3 viewrecords..
Disable Copy/Paste into HTML form using Javascript http://stackoverflow.com/questions/1226574/disable-copy-paste-into-html-form-using-javascript Opera 10 IE6 IE7&mdash support either oninput or onpaste. Out of all these browsers only Opera doesn't support onpaste but..
Which Devices Support Javascript Geolocation via navigator.geolocation? http://stackoverflow.com/questions/1349064/which-devices-support-javascript-geolocation-via-navigator-geolocation only familiar with my own device so this is my list so far Out of the box iPhone 3GS Supported but only with an update iPhone..
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 never going to work well. The view is the official record. Outside of a directive more on this below you never ever never change.. that I'm putting it as its own top level section. Out of all of the many jQuery plugins you've seen used or written..
Programmatically triggering typeahead.js result display http://stackoverflow.com/questions/15115059/programmatically-triggering-typeahead-js-result-display the user needing to type anything in the form field. Out of the box typeahead.js is only triggered if the user manually..
Why {} + {} is NaN only on the client side? Why not in Node.js? http://stackoverflow.com/questions/17268468/why-is-nan-only-on-the-client-side-why-not-in-node-js if script null script.exec cx getShellScope just an eval Out of the three Rhino's shell is the one that does the closest..
How to drag images / objects within Canvas? http://stackoverflow.com/questions/18333936/how-to-drag-images-objects-within-canvas 20 scaleValue context.restore Code for Zoom In and Zoom Out var scaleValue 1 var scaleMultiplier 0.8 draw1 scaleValue var..
How to get mouseup to fire once mousemove complete http://stackoverflow.com/questions/1909760/how-to-get-mouseup-to-fire-once-mousemove-complete ajax libs jquery 1.3.2 jquery.min.js script div id Out img id Img src http sstatic.net so img logo.png width 500 div.. function document .bind mouseup function alert UP #Out .bind mouseup function alert UP #Img .bind mouseup function..
Why GWT? Advantages and Trade-Offs of Using This RIA Framework http://stackoverflow.com/questions/2097964/why-gwt-advantages-and-trade-offs-of-using-this-ria-framework trying to do the same via Firebug or a similar tool OOPHM Out of Process Hosted Mode with this they fixed one of the biggest..
Get form data with Javascript/Jquery http://stackoverflow.com/questions/2276463/get-form-data-with-javascript-jquery selected selected Hi option option value ho Ho option form Out foo 1 bar xxx this hi Something like this is too simple since..
FB.Connect.logoutAndRedirect(''account/logout') will not redirect, even with proper session http://stackoverflow.com/questions/2308411/fb-connect-logoutandredirectaccount-logout-will-not-redirect-even-with-pro onclick FB.Connect.logoutAndRedirect 'account logout' Log Out a I have a valid session in my webapp and a valid Facebook session.. 'account logout' return false Log Out a This however still does not redirect anywhere. App just sits..
Can js/jQuery determine the orientation of the iPhone? http://stackoverflow.com/questions/2323281/can-js-jquery-determine-the-orientation-of-the-iphone js jQuery determine the orientation of the iPhone Out of curiosity I've been playing with jQuery to determine the..
Access browser's page zoom controls with javascript http://stackoverflow.com/questions/2578354/access-browsers-page-zoom-controls-with-javascript IE FF page zoom controls Menu View Zoom Zoom In_Zoom Out to two large icons on the web page so that vision impaired visitors..
How do I parse a HTML page with Node.js http://stackoverflow.com/questions/7372972/how-do-i-parse-a-html-page-with-node-js This may be useful only if you convert your html to xhtml. Out of all these options I prefer using the Node.js option because..
Capturing webpage as image in c#, ensuring javascript rendered elements are visible http://stackoverflow.com/questions/7803201/capturing-webpage-as-image-in-c-ensuring-javascript-rendered-elements-are-visi lindex IntPtr pvAspect In IntPtr ptd IntPtr hicTargetDev Out IntPtr ppColorSet PreserveSig int Freeze In MarshalAs UnmanagedType.U4.. int dwDrawAspect int lindex IntPtr pvAspect Out IntPtr pdwFreeze PreserveSig int Unfreeze In MarshalAs UnmanagedType.U4..
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