javascript Programming Glossary: examplesHref attribute for JavaScript links: “#” or “javascript:void(0)”? http://stackoverflow.com/questions/134845/href-attribute-for-javascript-links-or-javascriptvoid0 avoids all of the above headaches and I haven't found any examples of a downside. So if you're a lone developer then you can clearly..
event.preventDefault() vs. return false http://stackoverflow.com/questions/1357118/event-preventdefault-vs-return-false I can use one of two techniques. I'll use jQuery in the examples but this applies to plain JS as well # 1 event.preventDefault..
jQuery Mobile: document ready vs page events http://stackoverflow.com/questions/14468659/jquery-mobile-document-ready-vs-page-events default settings bind them to mobileinit . One of a good examples of mobileinit usage is turning off ajax page loading or changing.. this one is rather good with enough explanations and code examples. Changes 30.01.2013 Added a new method of multiple event triggering.. between page transitions 03.02.2013 Added new content examples to the chapter Data Parameters manipulation between page transitions..
Generating random numbers in Javascript in a specific range? http://stackoverflow.com/questions/1527803/generating-random-numbers-in-javascript-in-a-specific-range numbers share improve this question There are some examples on the Mozilla Developer Center page Returns a random number..
How to “properly” create a custom object in JavaScript? http://stackoverflow.com/questions/1595611/how-to-properly-create-a-custom-object-in-javascript an object that has properties and methods. I have seen examples where the person used var self this and then uses self. in all.. to make sure the scope is always correct. Then I have seen examples of using .prototype to add properties while others do it inline...
Prototypical inheritance - writing up [duplicate] http://stackoverflow.com/questions/16063394/prototypical-inheritance-writing-up by all class instances 2 answers So I have these 2 examples from javascript.info Example 1 var animal eat function alert..
Change an element's CSS class with JavaScript http://stackoverflow.com/questions/195951/change-an-elements-css-class-with-javascript document.getElementById Id which is what the following examples use you can of course obtain elements in other ways and in the.. script type text javascript function changeClass code examples from above script ... button onclick changeClass My Button button.. script type text javascript function changeClass code examples from above window.onload function document.getElementById MyElement..
Use of 'prototype' vs. 'this' in Javascript? http://stackoverflow.com/questions/310870/use-of-prototype-vs-this-in-javascript question This is a common misunderstanding. The two given examples are really doing entirely different things. We can take a look.. an object. If you did have an inheritance chain though our examples do not the second snippet would potentially make x available..
http://stackoverflow.com/questions/3127429/javascript-this-keyword Just for fun test your understanding with the following examples. To reveal the answers mouse over the gray boxes. What is the..
What do parentheses surrounding a JavaScript object/function/class declaration mean? http://stackoverflow.com/questions/440739/what-do-parentheses-surrounding-a-javascript-object-function-class-declaration-m mean I'm new to both JavaScript and YUI . In YUI library examples you can find many uses of this construct function var Dom YAHOO.util.Dom..
Using HTML5/Canvas/Javascript to take screenshots http://stackoverflow.com/questions/4912092/using-html5-canvas-javascript-to-take-screenshots supported . For more information have a look at the examples here http hertzen.com experiments jsfeedback edit The html2canvas.. script is now available seperately here and some examples here . edit 2 Another confirmation that Google uses a very similar..
http://stackoverflow.com/questions/500431/javascript-variable-scope I think about the best I can do is give you a bunch of examples to study. Javascript programmers are practically ranked by how..
Can a site invoke a browser extension? http://stackoverflow.com/questions/10526995/can-a-site-invoke-a-browser-extension the web page but functions and variables are not shared. Examples DOM manipulation If a content script adds a div element to a..
How to manually trigger validation with jQuery validate? http://stackoverflow.com/questions/1479255/how-to-manually-trigger-validation-with-jquery-validate and try the following #myform .validate .element #i1 Examples here http docs.jquery.com Plugins Validation Validator element#element..
Handling optional parameters in javascript http://stackoverflow.com/questions/1529077/handling-optional-parameters-in-javascript or the callback What's the best way of doing this Examples of what could be passed in 1 getData 'offers' 2 var array new..
How does the (function() {})() construct work and why do people use it? [closed] http://stackoverflow.com/questions/1639180/how-does-the-function-construct-work-and-why-do-people-use-it do these constructs work and what problems do they solve Examples appreciated javascript share improve this question With..
Is there a (built-in) way in JavaScript to check if a string is a valid number? http://stackoverflow.com/questions/175739/is-there-a-built-in-way-in-javascript-to-check-if-a-string-is-a-valid-number true if the variable does NOT contain a valid number Examples isNaN 123 false isNaN '123' false isNaN 'foo' true isNaN '10px'.. or NaN if the string isn't purely numeric characters Examples '12' 12 'foo' NaN '12px' NaN To convert a string loosely to.. a numeric value from the start of the string or NaN. Examples parseInt '12' 12 parseInt 'aaa' NaN parseInt '12px' 12 parseInt..
What's the difference between reflow and repaint? http://stackoverflow.com/questions/2549296/whats-the-difference-between-reflow-and-repaint skin that changes visibility but do not affect its layout. Examples of this include outline visibility or background color. According..
Javascript: What does a comma do? http://stackoverflow.com/questions/3561043/javascript-what-does-a-comma-do What does the comma do in the last piece of code More Examples if 0 9 alert ok alert if 9 0 alert ok don't alert alert 1 alert..
http://stackoverflow.com/questions/4994201/is-object-empty if hasOwnProperty.call obj key return false return true Examples isEmpty true isEmpty true isEmpty true isEmpty length 0 custom_property..
Sorting a set of CSS selectors on the basis of specificity http://stackoverflow.com/questions/5158631/sorting-a-set-of-css-selectors-on-the-basis-of-specificity a number system with a large base gives the specificity. Examples a 0 b 0 c 0 specificity 0 LI a 0 b 0 c 1 specificity 1 UL..
Format number to always show 2 decimal places http://stackoverflow.com/questions/6134039/format-number-to-always-show-2-decimal-places always display 2 decimal places rounding where applicable. Examples number display 1 1.00 1.341 1.34 1.345 1.35 I have been using..
http://stackoverflow.com/questions/6366021/placeholder-in-ie9 https github.com mathiasbynens jquery placeholder Demo Examples http mathiasbynens.be demo placeholder p.s I have used this..
YouTube iframe API: how do I control a iframe player that's already in the HTML? http://stackoverflow.com/questions/7443578/youtube-iframe-api-how-do-i-control-a-iframe-player-thats-already-in-the-html host file . Host your test page online or use JSFiddle . Examples See the links at the top of this answer. Q How did you know..
What does `void 0` mean? [duplicate] http://stackoverflow.com/questions/7452341/what-does-void-0-mean that takes one argument and always returns undefined . Examples void 0 void 0 void hello void new Date all will return undefined..
Can I load an entire HTML document into a document fragment in Internet Explorer? http://stackoverflow.com/questions/7474710/can-i-load-an-entire-html-document-into-a-document-fragment-in-internet-explorer the size of the element may be completely different. Examples sanitiseHTML html Paste this bookmarklet in the location's bar...
Automatically detect user's current local time with JavaScript or PHP http://stackoverflow.com/questions/863474/automatically-detect-users-current-local-time-with-javascript-or-php guide Users OS clocks can vary or be modified by users Examples Countdown Only 1 hour 3 minutes 56 seconds to go Issue seconds..
How to prevent Javascript injection attacks within user-generated HTML http://stackoverflow.com/questions/942011/how-to-prevent-javascript-injection-attacks-within-user-generated-html Listing every allowable HTML element and attribute . Examples of Javascript attack strings are 1 Hello I have a script alert..
http://stackoverflow.com/questions/9620586/function-in-javascript activations . Prior art Python Icon Lua Scheme Smalltalk. Examples The 𦤹nfinite sequence of Fibonacci numbers notwithstanding behavior..
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