Javscript Performance Mythbuster summary

javascript, performance, conferences
This post is old, and probably obsolete

Summary of the Javascript Performance Mythbusters slideshow, conveniently in one page. Hope this doesn't breach any copyright.

A great presentation @ Velocity 2012 conference on checking common assumptions. With work by Lindsey Simon, Kyle Simpson, Chris Joel, Nicholas C. Zakas

Busted myths

  • script defer is buggy on IE. A good strategy is to concat the files, and then chunk in 100k chunks based on how often they change, perhaps with different caching headers and with lay loading