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javascript Programming Glossary: notWhere can I find documentation on formatting a date in JavaScript http://stackoverflow.com/questions/1056728/where-can-i-find-documentation-on-formatting-a-date-in-javascript I find documentation on formatting a date in JavaScript I noticed that JavaScript's new Date function is very smart in accepting.. 06 12 12 52 39 Xmas95 new Date 20 09 2006 12 52 39 I could not find documentation anywhere showing all the valid string formats.. in API to format a date object into a string. Editor's note The following approach is the asker's attempt that worked on..
How do JavaScript closures work? http://stackoverflow.com/questions/111102/how-do-javascript-closures-work up closures e.g. functions variables and the like but does not understand closures themselves EDIT I have seen the Scheme example.. seen the Scheme example given in Stack Overflow and it did not help. javascript closures share improve this question Whenever.. question Whenever you see the function keyword within another function the inner function has access to variables in the..
Access / process (nested) objects, arrays or JSON http://stackoverflow.com/questions/11922383/access-process-nested-objects-arrays-or-json properties . Properties can be accessed either using dot notation var value obj.someProperty or bracket notation if the property.. using dot notation var value obj.someProperty or bracket notation if the property name would not be a valid JavaScript identifier.. or bracket notation if the property name would not be a valid JavaScript identifier name spec or the name is the..
event.preventDefault() vs. return false http://stackoverflow.com/questions/1357118/event-preventdefault-vs-return-false differs from normal non jQuery event handlers in which notably return false does not stop the event from bubbling up ... jQuery event handlers in which notably return false does not stop the event from bubbling up . Source John Resig http www.mail..
var functionName = function() {} vs function functionName() {} http://stackoverflow.com/questions/336859/var-functionname-function-vs-function-functionname and I can't work out if there is a reason behind it or not. The two ways are var functionOne function Some code function..
Does it matter which equals operator (== vs ===) I use in JavaScript comparisons? http://stackoverflow.com/questions/359494/does-it-matter-which-equals-operator-vs-i-use-in-javascript-comparisons would probably be welcomed as there are hundreds if not thousands of these comparison operators being used throughout.. doing any necessary type conversions . The operator will not do the conversion so if two values are not the same type will.. operator will not do the conversion so if two values are not the same type will simply return false . It's this case where..
http://stackoverflow.com/questions/5874652/prop-vs-attr the jQuery team reverted attr to something close to but not exactly the same as its old behaviour for Boolean attributes.. attr . Original answer If you've only ever used jQuery and not the DOM directly this could be a confusing change although it.. usually updating one will update the other but this is not the case for certain attributes of inputs such as value and..
How can I get query string values in JavaScript? http://stackoverflow.com/questions/901115/how-can-i-get-query-string-values-in-javascript query string values via jQuery or without If so how If not is there a plugin which can do so javascript jquery url plugins..
Get current URL with JavaScript? http://stackoverflow.com/questions/1034621/get-current-url-with-javascript current URL with JavaScript How do I get the website URL Not the URL as taken from a link. On the loading page I want to..
how can I make a div stick to the top of the screen once it's been scrolled to? http://stackoverflow.com/questions/1216114/how-can-i-make-a-div-stick-to-the-top-of-the-screen-once-its-been-scrolled-to
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 or written how many of them had an accompanying test suite Not very many because jQuery isn't very amenable to that. But AngularJS.. I see most frequently. We want a toggleable button. Note this example is a little contrived and a skosh verbose to represent..
How to “properly” create a custom object in JavaScript? http://stackoverflow.com/questions/1595611/how-to-properly-create-a-custom-object-in-javascript objects. This has been part 94 of Why JavaScript Is Not My Favourite Programming Language. share improve this answer..
JavaScript: client-side vs. server-side validation http://stackoverflow.com/questions/162159/javascript-client-side-vs-server-side-validation to the server. It is very dangerous to trust your UI. Not only can they abuse your UI but they may not be using your UI.. if they send custom HTTP requests from curl for example Not allowing for that is not only naive from a security standpoint..
Embedding JavaScript engine into .NET (C#) http://stackoverflow.com/questions/172753/embedding-javascript-engine-into-net-c experience in this area Engines like SquirrelFish V8.. Not that I'm not satisfied with Mozilla's Spidermonkey using it..
How to fix Array indexOf() in JavaScript for IE browsers http://stackoverflow.com/questions/1744310/how-to-fix-array-indexof-in-javascript-for-ie-browsers function for Array.prototype.indexOf including IE8 . Not a huge problem because you can extend the functionality on your..
Javascript Post on Form Submit open a new window http://stackoverflow.com/questions/178964/javascript-post-on-form-submit-open-a-new-window hiddenField document.body.appendChild form Not entirely sure if this is necessary form.submit What I would..
http://stackoverflow.com/questions/2095697/unzip-files-using-javascript It's very slow. Takes ~4 seconds to unzip the 140k AppNote.txt file from PKWare. The same uncompress can be done in less.. unreasonable demands on system memory for large zip files. Not so much a problem for a smaller zip file. Also It doesn't handle..
JavaScript get clipboard data on paste event (Cross browser) http://stackoverflow.com/questions/2176861/javascript-get-clipboard-data-on-paste-event-cross-browser all modern browsers e.g. MSIE Gecko Chrome and Safari . Note that MSIE has clipboardData.getData but I could not find similar.. cross browser clipboard share improve this question Not directly. IE has had the paste event since 5.5 Firefox since.. on restores the user selection and pastes the text in. Note that this will only work for keyboard paste events and not..
Get Cursor Position within a Text Input field http://stackoverflow.com/questions/2897155/get-cursor-position-within-a-text-input-field html share improve this question Found this solution. Not jquery based but there is no problem to integrate it to jquery..
Is JavaScript 's “new” Keyword Considered Harmful? [closed] http://stackoverflow.com/questions/383402/is-javascript-s-new-keyword-considered-harmful function's prototype and use new to stamp out new objects. Not only is this faster no code needed for each and every method.. throw new Error Constructor called as a function Note that this snippet is able to avoid hard coding the constructor..
Input placeholders for Internet Explorer http://stackoverflow.com/questions/5522164/input-placeholders-for-internet-explorer on focus with IE10 which differs from Firefox and Chrome. Not sure if there is a solution for this problem. share improve..
http://stackoverflow.com/questions/5874652/prop-vs-attr although it is definitely an improvement conceptually. Not so good for the bazillions of sites using jQuery that will break..
jqgrid server side error message/validation handling http://stackoverflow.com/questions/6960208/jqgrid-server-side-error-message-validation-handling the first line of the server response will be HTTP 1.1 404 Not Found and jqGrid based on the HTTP status code 404 in the case..
Most elegant way to clone a JavaScript object http://stackoverflow.com/questions/728360/most-elegant-way-to-clone-a-javascript-object different in other browsers but you get the picture. Not everything is enumerable. You can copy a hidden attribute if..
How do I disable right click on my web page? http://stackoverflow.com/questions/737022/how-do-i-disable-right-click-on-my-web-page disallow disabling of the right click context menu anyway. Not sure why you'd want to. If it's out of some misplaced belief..
Comparing two arrays in Javascript http://stackoverflow.com/questions/7837456/comparing-two-arrays-in-javascript I'd like to compare two arrays... ideally efficiently. Nothing fancy just true if they are identical and false if not... fancy just true if they are identical and false if not. Not surprisingly the comparison operator doesn't seem to work. var..
Frame Buster Buster … buster code needed http://stackoverflow.com/questions/958997/frame-buster-buster-buster-code-needed security issue click this link to fix this problem Not the best but I don't see any way they could script their way..
Will HTML5 allow web apps to make peer-to-peer HTTP connections? http://stackoverflow.com/questions/1032006/will-html5-allow-web-apps-to-make-peer-to-peer-http-connections a server getting involved only in the initial handshake. NOTE Java applets don't count. I'm interested only in standard browser.. connections from javascript but these connections WILL NOT BE RAW TCP. The complete spec can be found at http dev.w3.org..
Is Safari on iOS 6 caching $.ajax results? http://stackoverflow.com/questions/12506897/is-safari-on-ios-6-caching-ajax-results Safari will cache Cache Control no cache iOS6 Safari will NOT cache I suspect that Apple is taking advantage of this from.. thought it would be a good idea until now. But that does NOT account for the caching when no Cache Control or Expires headers..
Prototypical inheritance - writing up [duplicate] http://stackoverflow.com/questions/16063394/prototypical-inheritance-writing-up prototype share improve this question Prototypes are NOT instantiated for each instance of an object. Hamster.prototype.food..
How do I reset the scale/zoom of a web app on an orientation change on the iPhone? http://stackoverflow.com/questions/2557801/how-do-i-reset-the-scale-zoom-of-a-web-app-on-an-orientation-change-on-the-iphon content I am setting the initial scale to 1.0 and I am NOT setting minimum or maximum scale nor do I want to . I am setting..
http://stackoverflow.com/questions/3127429/javascript-this-keyword global execution context setTimeout function alert I'm NOT evaluated in the initial global execution context. 1 script..
How do I get the name of an object's type in JavaScript? http://stackoverflow.com/questions/332422/how-do-i-get-the-name-of-an-objects-type-in-javascript the name property of the constructor property... Does NOT work in IE9 Using myObjectInstance.constructor.name will give.. expect it to because of a lack of grokking the subtleties. NOTE Discussion of the typeof operator may appear to be a glaring..
How to use redis PUBLISH/SUBSCRIBE with nodejs to notify clients when data values change? http://stackoverflow.com/questions/4441798/how-to-use-redis-publish-subscribe-with-nodejs-to-notify-clients-when-data-value node.js npm in 30 seconds the right way because you should NOT run npm as root echo 'export PATH HOME local bin PATH' ~ .bashrc..
http://stackoverflow.com/questions/4862193/javascript-global-variables can be anonymous if you like function var a 0 `a` is NOT a property of `window` now function foo alert a Alerts 0 because..
http://stackoverflow.com/questions/500431/javascript-variable-scope Seven.prototype.b 8 Will get reached even though 'b' is NOT set in the constructor. These will print 1 8 one two 2 three..
Resize iframe height according to content height in it http://stackoverflow.com/questions/525992/resize-iframe-height-according-to-content-height-in-it is use a trigger from the iframe'd page in window.onload NOT domready as it can take a while for images to load to pass the..
Return value from function with an Ajax call [duplicate] http://stackoverflow.com/questions/562412/return-value-from-function-with-an-ajax-call anonymous function you are defining will run. This code is NOT being executed right away. It is waiting for an event to happen...
What is the “double tilde” (~~) operator in JavaScript? [duplicate] http://stackoverflow.com/questions/5971645/what-is-the-double-tilde-operator-in-javascript share improve this question That ~~ is a double NOT bitwise operator. It is used as a faster substitute for Math.floor..
detect back button click in browser http://stackoverflow.com/questions/6359327/detect-back-button-click-in-browser null null Handle the back or forward buttons here Will NOT handle refresh use onbeforeunload for this. else var ignoreHashChange..
How can I parse a CSV string with Javascript? http://stackoverflow.com/questions/8493195/how-can-i-parse-a-csv-string-with-javascript contain unescaped double quotes. A non quoted string. may NOT contain quotes commas or backslashes. An empty value. An all.. backslashes or quotes e.g. the following CSV string is NOT valid var invalid1 one that's me escaped comma This is not really..
Building a Chrome Extension - Inject code in a page using a Content script http://stackoverflow.com/questions/9515704/building-a-chrome-extension-inject-code-in-a-page-using-a-content-script executed in a local scope. For example the following does NOT overwrite the global `alert` method var alert null To overwrite..
Javascript - How to detect if document has loaded (IE 7/Firefox 3) http://stackoverflow.com/questions/978740/javascript-how-to-detect-if-document-has-loaded-ie-7-firefox-3 it did load then I can just call the function. If it did NOT load then I can attach an event listener. I can't add an eventlistener.. body document.getElementsByTagName 'BODY' 0 CONDITION DOES NOT WORK if body && body.readyState 'loaded' DoStuffFunction else..
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