Run results for: pre-decrement vs post-decrement vs assignment operator

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 15_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.6.1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 15

Operating system: iOS 15.6.1

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
pre-decrement	364837800.0 Ops/sec
post-decrement	135248300.0 Ops/sec
addition assignment operator	131917500.0 Ops/sec
operation minus	131937800.0 Ops/sec

Script Preparation code:

let i = 100;

Tests:

pre-decrement
--i
post-decrement
i--
addition assignment operator
i -= 1
operation minus
i = i - 1

Run results for: pre-decrement vs post-decrement vs assignment operator

pre-decrement

post-decrement

addition assignment operator

operation minus