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

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_0_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.0.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.0.1

Device Platform: Mobile

Date tested: one year ago

i++

449.3M/s

++i

346.6M/s

i=i+1

178.2M/s

i--

176.4M/s

i=i-1

176.0M/s

i+=1

175.1M/s

View exact numbers

Test name	Executions per second
✓ i++	449,274,592 Ops/sec
++i	346,580,416 Ops/sec
i=i+1	178,198,928 Ops/sec
i--	176,440,304 Ops/sec
i=i-1	175,992,336 Ops/sec
i+=1	175,071,920 Ops/sec

Script Preparation code:

var i=100;

Tests:

i++
i++
i--
i--
++i
++i
i=i+1
i=i+1
i+=1
i+=1;
i=i-1
i=i-1