Debugging in YUI 3
Published July 5th, 2010 Under Unit Testing | Leave a Comment
YUI engineer Luke Smith discusses the fine art of debugging web applications, looking at general tools and techniques and providing a few specific hints about debugging in YUI 3.
Using FireBug to Debug JavaScript
Published May 10th, 2010 Under Unit Testing | Leave a Comment
A short introduction to the usage of Firebug, a Firefox add-on, to debug JavaScript code. Firebug integrates with Firefox to put a wealth of web development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page.
Testing, Performance Analysis and jQuery 1.4
Published February 22nd, 2010 Under Performance Testing | Leave a Comment
In the first part of the talk, John reviewed the range of tools available to frontend engineers for unit testing and for analyzing the performance of code. In the latter case, he argues for going beyond pure speed-based benchmarks to structural analyses of performance. By looking at structure, the jQuery team was able to identify and correct bottlenecks, resulting in major performance improvements in the upcoming 1.4 release. In the second part of the talk (beginning at 49:20 in the video), John reviews some of those jQuery 1.4 changes. In the short third section (beginning at 1:03:15), he looks at some interesting trends he’s noticed in the practical application of new HTML 5 elements — especially in older browsers.
Become a Web Debugging Virtuoso with Fiddler
Published February 3rd, 2010 Under Unit Testing | Leave a Comment
Learn how teams around Microsoft and ISVs around the world use the Fiddler web debugging tool to find bugs, troubleshoot performance problems, and uncover security vulnerabilities in both client and server code. Explore the best add-ons for Fiddler, and build your own functionality using JavaScript and .NET languages. Examine how new features in Internet Explorer 8, like Accelerators and Visual Search suggestions, utilize the network. Learn actionable best practices for building faster websites
Extreme JS Performance
Published February 3rd, 2010 Under Performance Testing, Software Testing | Leave a Comment
You serve up your code gzipped. Your caches are properly configured. Your data (and scripts) are loaded on-demand. That’s awesome—so don’t stop there. Runtime is another source of slowdowns, and you can learn to conquer those, too. Learn how to profile & benchmark your code to isolate performance issues, and what to do when you find them. The techniques you’ll learn range from the normal (clean up after yourself) to the extreme (unrolling loops).
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