Run results for: while vs for vs forEach vs for of - 1000000 - calc - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:92.0) Gecko/20100101 Firefox/92.0

Browser: Firefox 92

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
while	2053.3 Ops/sec
for	2282.7 Ops/sec
forEach	92768.0 Ops/sec
for of	1870.9 Ops/sec

Website performance monitoring

Script Preparation code:

var arr =new Array(10000);

Tests:

while
let i=0; while(i < arr.length) { const exp = arr[i] ** 2; i++; }
for
for(let i=0; i<arr.length; i++) { const exp = arr[i] ** 2; }
forEach
arr.forEach((element) => { const exp = element ** 2; });
for of
for(const element of arr) { const exp = element ** 2; }