David Walsh on Tech.Pro

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Over the past few weeks I've written four awesome tutorials for Tech.Pro.  If you have a moment, check them out!

9 Ways to Optimize Your Front End Performance

As our browsers implement more and more features and the web moves more and more toward mobile devices, the need to keep our front end code compact and optimized becomes more important. What's great about the front end is that there are many simple strategies and code conventions we can use to to ensure optimal front end performance. This post aims to provide you nine of these code tips, tips you could probably implement on your existing sites in matter of minutes!

9 More Ways to Optimize Your Front End Performance

In my previous post, 9 Ways to Optimize Your Front End Performance, I shared easy to implement ideas for improving your client-side code and performance. Most of those tips take only a few moments to implement and the benefit is seen by every user that hits the site. This tutorial provides nine more useful performance tips that can take your website or web application to the next level.

6 Mozilla GitHub Projects to Hack On

There's no way to communicate exactly how important Mozilla is to the world wide web. Mozilla brought us an open source, forward-thinking browser when we needed one, threw us a mail client miles better than Outlook in Thunderbird, and now brings us an open source, HTML5-based mobile operating system in Firefox OS. In short: Mozilla's commitment to excellence in open source has drive the web to where it is today.

We all know of Mozilla's super popular projects, all of which are open source, but what about Mozilla's lesser known projects? This post aims to introduce you to those projects, all of which you can clone on GitHub today and begin hacking to help make the web better!

6 Considerations and Tips for Creating HTML5 Apps

The newly announced Firefox OS and the Firefox Marketplace have again brought attention to the concept of creating feature-rich HTML5 apps. People are excited and why shouldn't they be? Firefox OS and HTML-based OS' like it essentially launch with millions of apps already available -- in the form of existing websites! We all revel in how easy it is to create the basic HTML5-based app, but creating a great HTML5-based app is another story. Here are a few considerations and tips you should mull over before jumping into your first HTML5 app.

Recent Features

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    I’m an Impostor

    This is the hardest thing I've ever had to write, much less admit to myself.  I've written resignation letters from jobs I've loved, I've ended relationships, I've failed at a host of tasks, and let myself down in my life.  All of those feelings were very...

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    CSS @supports

    Feature detection via JavaScript is a client side best practice and for all the right reasons, but unfortunately that same functionality hasn't been available within CSS.  What we end up doing is repeating the same properties multiple times with each browser prefix.  Yuck.  Another thing we...

Incredible Demos

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    Creating the Treehouse Frog Animation

    Before we start, I want to say thank you to David for giving me this awesome opportunity to share this experience with you guys and say that I'm really flattered. I think that CSS animations are really great. When I first learned how CSS...

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    Image Data URIs with PHP

    If you troll page markup like me, you've no doubt seen the use of data URI's within image src attributes. Instead of providing a traditional address to the image, the image file data is base64-encoded and stuffed within the src attribute. Doing so saves...

Discussion

    Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!