Re:Google Closure: How not to write Javascript
by asher on Thursday November 12, 2009 @02:16AM
(#937318)
I just tried it.
With 10M entries in the array, the "slow" way takes 509 ms and the "faster" way takes 362 ms. So we can save roughly 15 nanoseconds per iteration. Or a 30% speedup - assuming nothing happens inside the loop.
(Of course the numbers may vary wildly per browser.)
Somehow I doubt this is the performance problem behind slow web pages.
With 10M entries in the array, the "slow" way takes 509 ms and the "faster" way takes 362 ms. So we can save roughly 15 nanoseconds per iteration. Or a 30% speedup - assuming nothing happens inside the loop.
(Of course the numbers may vary wildly per browser.)
Somehow I doubt this is the performance problem behind slow web pages.