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This Week in JavaScript Performance

Javascript performance tipsThis Week in JavaScript Performance summarizes recent web postings related to JavaScript performance. Watch for it on the Monitor.Us blog at the beginning of each week.

86 percent of companies use multiple cloud services, says study

Author: Meghan Kelly.   Publisher: Venture Beat.

This article shows how ubiquitous cloud-based services have become. “Today, 86 percent of companies use more than one type of cloud service.” More importantly for us here at Monitor.Us, cloud-based monitoring (like the Monitor.Us system) is used by 42% of the companies that were surveyed. [Warning: The topmost graphic does not match the article’s conclusion, and is internally inconsistent.]

Compiling JavaScript for Performance

Author: Warren Gaebel.   Publisher: Monitor.Us.

This article argues that we need to compile JavaScript rather than interpret it.

Why interpreters matter (at least for high level programming languages)

Author: Stefan Brunthaler.   Publisher: University of California.

This article argues that interpreting high-level languages has benefits that outweigh performance considerations. You may appreciate this article even if you don’t agree with the “subjective point-of-view.”

Getting snappy – performance optimizations in Firefox 13

Author: Lawrence Mandel.   Publisher: Mozilla.

This article, written by a Firefox Engineering Program Manager, skims the surface of some of Firefox 13’s performance improvements. There’s not a lot of detail, but what is really interesting is the comments down below. A number of die-hard Firefox fans are jumping ship in favour of Chrome and are adding comments to explain why. Kudo’s to Mozilla for publishing the “bad” comments along with the “good.” It’s a sign of integrity.

Stable Channel Update

Author: Google.   Publisher: Google.

“The Google Chrome team is happy to announce the arrival of Chrome 19.” Twenty fixes are summarized in this announcement.

Web First for Mobile

Author: Steve Souders.   Publisher: Steve Souders.

This article argues that a mobile WEB presence, including mobile WEBapps, should be prioritized higher than native apps. The comments add value, so don’t skip them.

HTML5 Audio – The State of Play

Author: Mark Boas.   Publisher: HTML 5 Doctor.

This article takes a look at the state of HTML 5 audio. In doing so, it presents content and code to help an HTML5 beginner understand how to handle audio.

Working with files in JavaScript, Part 2: FileReader”

Author: Nicholas C. Zakas.   Publisher: Nicholas C. Zakas.

This article is part two of a how-to tutorial for using files in HTML5. It deals with asynchronous file reads using a FileReader. Part 3, yet to be published, will deal with FileReader’s events and error-handling.

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About Warren Gaebel

Warren wrote his first computer program in 1970 (yes, it was Fortran).  He earned his Bachelor of Arts degree from the University of Waterloo and his Bachelor of Computer Science degree at the University of Windsor.  After a few years at IBM, he worked on a Master of Mathematics (Computer Science) degree at the University of Waterloo.  He decided to stay home to take care of his newborn son rather than complete that degree.  That decision cost him his career, but he would gladly make the same decision again. Warren is now retired, but he finds it hard to do nothing, so he writes web performance articles for the Monitor.Us blog.  Life is good!