Run results for: i++ vs ++i vs i += 1 vs i = i + 1

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.152 YaBrowser/21.2.2.101 Yowser/2.5 Safari/537.36

Browser: Yandex Browser 21

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
i++	42107.6 Ops/sec
++i	41306.6 Ops/sec
i += 1	41216.0 Ops/sec
i = i + 1	37334.4 Ops/sec

Script Preparation code:

var a = [0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9];
var c;

Tests:

i++
for(i = 0, len = a.length; i < len; i++) { c = a[i]; }
++i
for(i = 0, len = a.length; i < len; ++i) { c = a[i]; }
i += 1
for(i = 0, len = a.length; i < len; i += 1) { c = a[i]; }
i = i + 1
for(i = 0, len = a.length; i < len; i = i + 1) { c = a[i]; }