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javascript Programming Glossary: quiteJavascript: Do I need to put this.var for every variable in an object? http://stackoverflow.com/questions/13418669/javascript-do-i-need-to-put-this-var-for-every-variable-in-an-object but doing that for every variable clutters up my code quite a bit. Is this necessary for every variable Since I can't find.. other values to inherit Foo.prototype.getBar function quite useless return this.bar var foo new Foo creates an object which..
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 at the moment you call getElementById . The latter case is quite common. Browsers parse and process the HTML from top to bottom...
How to “properly” create a custom object in JavaScript? http://stackoverflow.com/questions/1595611/how-to-properly-create-a-custom-object-in-javascript prototype to save you having to write Class.prototype... quite so much. A lot of class systems do that eg Circle Shape.makeSubclass.. for simple throwaway page effects. But both ways are quite counter intuitive to most programmers. Both have many potential..
What is the 'new' keyword in JavaScript? http://stackoverflow.com/questions/1646698/what-is-the-new-keyword-in-javascript in JavaScript The new keyword in JavaScript can be quite confusing when it is first encountered as people tend to think..
Why would a JavaScript variable start with a dollar sign? http://stackoverflow.com/questions/205853/why-would-a-javascript-variable-start-with-a-dollar-sign would a JavaScript variable start with a dollar sign I quite often see JavaScript with variables that start with a dollar..
JavaScript get clipboard data on paste event (Cross browser) http://stackoverflow.com/questions/2176861/javascript-get-clipboard-data-on-paste-event-cross-browser data directly is generally impossible. What you can do is quite involved and a bit of a hack that will work in Firefox 2 IE..
Resizing an image in an HTML5 canvas http://stackoverflow.com/questions/2303690/resizing-an-image-in-an-html5-canvas do you do if all the browsers actually Chrome 5 gave me quite good one won't give you good enough resampling quality You implement..
Invoking JavaScript code in an iframe from the parent page http://stackoverflow.com/questions/251420/invoking-javascript-code-in-an-iframe-from-the-parent-page I need to invoke from the parent page. Now the opposite is quite simple as you only need to call parent.functionName but unfortunately..
Is javascript guaranteed to be single-threaded? http://stackoverflow.com/questions/2734025/is-javascript-guaranteed-to-be-single-threaded introduced by WebWorkers. However in reality this isn't quite true in sneaky nasty ways. The most common case is immediate..
Elements order in a “for (??in ??” loop http://stackoverflow.com/questions/280713/elements-order-in-a-for-in-loop ... is implementation dependent. However specification is quite different from implementation. All modern implementations of..
Google Maps JS API v3 - Simple Multiple Marker Example http://stackoverflow.com/questions/3059044/google-maps-js-api-v3-simple-multiple-marker-example simple but all the multi marker tutorials I have found are quite complex. Lets use the data array from google's site for an example.. callback argument to the addListener method. This can be quite a tricky topic if you are not familiar with how closures work...
Setting CSS pseudo-class rules from JavaScript http://stackoverflow.com/questions/311052/setting-css-pseudo-class-rules-from-javascript Dynamic stylesheet fiddling is rarely done because it's quite annoying to get right rarely needed and historically troublesome...
Using HTML5/Canvas/Javascript to take screenshots http://stackoverflow.com/questions/4912092/using-html5-canvas-javascript-to-take-screenshots to load CORS images even if a proxy was available. Still quite limited browser compatibility not because more couldn't be supported..
http://stackoverflow.com/questions/500431/javascript-variable-scope by how well they understand scope. It can at times be quite counter intuitive. a globally scoped variable var a 1 global..
JavaScript inheritance and the constructor property http://stackoverflow.com/questions/8093057/javascript-inheritance-and-the-constructor-property instance object instead of the prototype. The answer is quite simple Whenever we call a function preceded with the new keyword..
For each in an array. How to do that in JavaScript? http://stackoverflow.com/questions/9329446/for-each-in-an-array-how-to-do-that-in-javascript in a comment on my blog post that my previous test wasn't quite right. That's a tiny bit of added overhead per loop iteration.. test you could use this but while it's close it's not quite correct for key in a Good enough for most cases if String parseInt..
Disabling browser print options (headers, footers, margins) from page? http://stackoverflow.com/questions/1960939/disabling-browser-print-options-headers-footers-margins-from-page css and the header footer position conflicts with content. Quite good but looks strange if margin is set to a small value that..
Javascript: Closures and Callbacks http://stackoverflow.com/questions/2070275/javascript-closures-and-callbacks the function passed as a parameter this is a callback . Quite often the callback actually happens as an asynchronous event.. passed as a callback is executed. Closures and callbacks Quite often the reason that closures get created either incidentally..
Current commonly accepted best practices around code organization in JavaScript http://stackoverflow.com/questions/247209/current-commonly-accepted-best-practices-around-code-organization-in-javascript manage the script files or find what you are looking for. Quite possibly the biggest propblems I've found is there are so many..
Javascript inheritance: call super-constructor or use prototype chain? http://stackoverflow.com/questions/4152931/javascript-inheritance-call-super-constructor-or-use-prototype-chain inheritance call super constructor or use prototype chain Quite recently I read about JavaScript call usage in MDC https developer.mozilla.org..
http://stackoverflow.com/questions/4821711/php-tags-in-js-file to run on .js files which by default it won't be. Quite honestly I wouldn't recommend this behavior. What I'd do instead..
Increase font size with JavaScript around fixed floated images in CSS columns http://stackoverflow.com/questions/5405789/increase-font-size-with-javascript-around-fixed-floated-images-in-css-columns multiple images based on my original JavaScript. Edit 4 Quite a lot of edits now&hellip but I found the bug. For each font..
Update whole page on Ajax request http://stackoverflow.com/questions/5941933/update-whole-page-on-ajax-request jquery ajax http share improve this question Quite frankly I think that approach is basically broken by design...
http://stackoverflow.com/questions/845848/ie8-simple-alert-is-failing IE8 select option onclick javascript alert 'test' 5 option Quite bizarre no alert is shown in IE8. I do not see the error icon..
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