Google Web perfomance initiative.

By Eldar Djafarov | Published: July 23, 2009

Gogle initiates a really great project recently: Let’s make the web faster
So Optimizing JavaScript code article got in scope of my interest.
Conclusions:

  • use [<string>,<string>,<string>].join(“”) for string concatenation (* this is pretty well known rule)
  • use prototype method defining rather than defining method inside closure
  • Creating a closure is significantly slower then creating an inner function without a closure, and much slower than reusing a static function.

By the way – in the last one “significantly” means(lower is better)
for Chrome2: 20:10:1
for FireFox3: 500:50:1
for IE6: 2:2:1
I think this is really significantly:)

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