Best of 2009

The blog posts Hacker News loved most in 2009. 159 posts.

Web & Frontend
75

Mozilla Test Swarm Alpha Open

TestSwarm , the project that I’ve been working on over the past 6 months, or so, is now open to the public. Mozilla has been very gracious, allowing me to work on this project exclusively. At the beginning of April I moved from my old position as a JavaScript Evangelist on the Mozilla Evangelism team to that of a…

78

Don’t use @import

In Chapter 5 of High Performance Web Sites , I briefly mention that @import has a negative impact on web page performance. I dug into this deeper for my talk at Web 2.0 Expo , creating several test pages and HTTP waterfall charts, all shown below. The bottomline is: use LINK instead of @import if you want stylesheets…

90

What webhooks are and why you should care

Webhooks are user-defined HTTP callbacks. Here’s a common example: You go to github. There’s a textbox for their code post webhook. You drop in a URL. Now when you post your code to github, github will HTTP POST to your chosen URL with details about the code post. There is no simpler way to allow open ended…