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Changes between Initial Version and Version 1 of Ticket #2179, comment 33

initial	v1
1		If you really go for speed use ~~on object instead of~~ array, so the test for existence doesn't involve indexOf(). Although, that really matters only above of a few hundred items. What is really slow is the use of for in and for of loops. In both cases JS goes over the iterator protocol which is factor ~70 slower than a simple while/for loop.
	1	If you really go for speed use an object instead of an array, so the test for existence doesn't involve indexOf(). Although, that really matters only above of a few hundred items. What is really slow is the use of for in and for of loops. In both cases JS goes over the iterator protocol which is factor ~70 slower than a simple while/for loop.
2	2
3	3	I've attached the output of the JIT Inspector for all three loop types. One can just look at the amount of opcodes SM produces to get the picture.