Run results for: for vs while vs for of vs forEach4 - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Android 11; Mobile; rv:109.0) Gecko/111.0 Firefox/111.0

Browser: Firefox Mobile 111

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
for i++	338559.4 Ops/sec
for i--	344774.2 Ops/sec
while i--	306863.4 Ops/sec
for of	42784.8 Ops/sec
forEach	39867.7 Ops/sec

Script Preparation code:

var arr = []
for (var i = 0; i < 1000; i++) arr[i] = i

Tests:

for i++
for (var i = 0; i < arr.length; i++) { }
for i--
for (var i = arr.length; i >= 0; i--) { }
while i--
var i = arr.length while (i--) { }
for of
for (var v of arr) { }
forEach
arr.forEach(v => { })

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