i++ vs ++i (v7)

Revision 7 of this benchmark created on

Description

The hello world books of programming always start you off with i++, however did you know that i++ comes with a bit of overhead? that's because before you can increment i under the hood a new copy of i must be created. Using ++i you don't need that extra copy. i++ will return the current value before incrementing i. ++i returns the incremented version i. This test is to demonstrate that it's faster to use ++i. Get ready get set update your code!

Test runner

Ready to run.

Testing in
TestOps/sec
100000 iterations of ++i
for (var i = 0; i < 100000; ++i) {}
ready
100000 iterations of --i
for (var i = 100000; i > 0 ; --i) {}
ready
100000 iterations of i+1
for (var i = 0; i < 100000; i+=1) {}
ready
100000 iterations of i-1
for (var i = 100000; i > 0; i-=1) {}
ready
100000 iterations of i--
for (var i = 100000; i > 0 ; i--) {}
ready

Revisions

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