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David Walsh Tutorials

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    OSCON Portland: Conference Discount!

    O'Reilly puts on the best web industry conferences in the world.  These conferences include Fluent Conference, Velocity Conference, and the upcoming OSCON in Portland, Oregon from July 20-24.  Open Source Convention (OSCON) is a conference that focuses specifically on open source developers and the tools and possibilities...

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    Follow Redirects with cURL

    I love playing around with cURL. There's something about loading websites via command line that makes me feel like some type of smug hacker, just like tweeting from command line does. I recently cURL'd the Google homepage and saw the following: I found it weird that Google...

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    Copy a Directory from Command Line

    Copying a directory for the sake of backup is something I do often, especially when I'm trying to figure out why something isn't working when I use an external library.  I'll copy the directory structure as a backup, mess around with the original source until I find a solution...

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    Hotjar – All-in-one Analytics and Feedback

    Website analytics are a massive business -- the more data you can collect with regard to your users' behaviors on your site, the more you can increase and maximise conversion...and increased conversion is always good.  Sometimes increase conversion means more money, improved user experience, viewer retention...

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    Add Styles to Console Statements

    I was recently checking out Google Plus because they implement some awesome effects.  I opened the console and same the following message: WARNING! Using this console may allow attackers to impersonate you and steal your information using an attack called Self-XSS. Do not enter or paste code that you...

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    File Extension Change Shortcut

    Changing the extension of a file seems like something you would do often enough to know how to do it from command line.  One annoying part of moving a file is repeating the file name a second time when all I want to do is change the...

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    Get Image Dimensions from Command Line

    The command line is a gold mine if you come from the perspective of a UI lover.  Getting information from the shell instead of opening an app, finding a file or directory, etc...what a novel concept.  Opening different image files opens up different apps on my Mac...

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    Remove Audio From Video

    Sometimes I want to display live motion without the audio, since the audio is either bad quality or it's just extra load, which is especially important on mobile.  You could probably argue converting the video to GIF is more appropriate, but GIFs can be larger and more taxing on...

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    Top Web Developer Tools You Need To Know About

    We have gathered 11 of the most simple, yet efficient top developer tools, that you must have in order to improve your businesses and projects. Feel free to read about them and please leave a comment so we all know your opinion. uKit Website Builder

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    Basics of Monkey Patching

    As one of the MooTools team and someone who worked with the Dojo Toolkit for years, I quickly learned one lesson:  you never modify the source of a library when using it on a given web app.  Doing so makes upgrades of the library a nightmare and...