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David Walsh Tutorials

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    Web Inspector and Firefox Dollar Functions

    Many of you probably didn't know this but WebKit-based like Safari and Chrome, in addition to Firefox, contain special dollar functions within the console object that allow you to grab elements within the current page.  While I've not determined the use of each method, a few...

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    JavaScript Copy to Clipboard with Branding

    I published a post a year ago detailing how you can copy to the clipboard using JavaScript.  The post was very popular and why would it be?  Copying content from a webpage without needing to use the default browser functions is awesome.  One trend I've...

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    MooTools 1.3 Browser Object

    MooTools 1.3 was just released and one of the big additions is the Browser object.  The Browser object is very helpful in that not only do you get information about browser type and browser versions, you can gain information about the user's OS, browser plugins, and...

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    Mobile Touch Events in MooTools 1.3

    The release of MooTools 1.3 brings about a vast array of new functionality to the JavaScript framework.  One big new addition to MooTools Core is the ability to detect mobile events:  touchstart, touchmove, touchend, touchcancel, gesturestart, gesturechange, gestureend, and orientationchange.  Let me show you...

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    MooTools 1.3 Has Arrived!

    After a year of hard work, listening to the MooTools community's needs, and some more hard work, the MooTools team is proud to release MooTools 1.3!  Below is a summary of what's awesome in MooTools at the moment. Core 1.3 MooTools Core 1.3 is everything you...

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    Search Engine Friendly URLs with .htaccess and mod_rewrite

    I was recently developing a PHP website that used mod_rewrite to make its URLs search engine friendly. Websites have been using mod_rewrite and .htaccess strategies to do this for years now and there are a 100 ways to accomplish the task. One issue that...

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    Integrity: Link Checker for Mac

    I usually don't post about desktop applications because, quite frankly, I make my living creating awesome web apps.  I did, however, recently stumble upon a free utility which searches for broken links within a website.  That utility is the awesome Integrity application for Snow Leopard. Integrity is...

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    Troubleshooting CSS Style Assignments within Dojo

    I was recently working on a Dojo project which used a series of JavaScript calculations to generate CSS style values. While calculating styles with JavaScript is quite common, especially when attempting to dynamically position HTML nodes, values aren't always cleansed the way that they should...

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    Load MooTools Classes on Demand with RequireJS

    RequireJS is a hugely popular JavaScript project right now thanks to what it does:  asynchronously load JavaScript files and properly handle their introduction to a namespace flawlessly.  Of course, callbacks are provided which allow you to work with the new code one it has been loaded.

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    JavaScript Events: Save the Bubbles!

    The more we work with advanced, accessible, and crawlable web applications, the more control we need over element events.  Mouseenter/leave events, keypress events, and the classic click event are probably the most-listened to events.  Unfortunately many people, including myself, have been incorrectly handling event stoppage.  In...