YF (Yang) Reporter
	Description • 7 years ago

For example:

https://jsperf.com/pk-for-of-vs-for-each
For Of
30,885
±0.61%
97% slower

For Each
1,183,367
±0.32%
fastest


https://jsperf.com/for-of-vs-for-short-arr
for
515,049
±4.44%
fastest

for..of
21,891
±6.85%
96% slower

	Tooru Fujisawa [:arai]
	Comment 1 • 7 years ago

> https://jsperf.com/pk-for-of-vs-for-each

this case ignores the return value of the function call, and looks like the whole loop gets optimized away in forEach case.
(between "func05-pass15-De-Beta-mir.gv" and "func05-pass16-RA check UCE-mir.gv", in iongraph)

but the loop is still there in for-of case.