Re:Long live the callbacks
by Zikes on Thursday August 22, 2013 @11:05AM
(#6257559)
In the first example the genPrimes function is being created 2e4 times, once for each iteration of the loop. In the second example it's defined once.
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Re:Long live the callbacks
by lewispollard on Thursday August 22, 2013 @11:11AM
(#6257596)
Yep, if you use jshint/lint it'll warn you about creating functions within a loop. The performance difference is more to do with that than any inherent flaws in using anonymous functions as callbacks.