Run results for: Looping with Index: forEach vs array.entries vs for of

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36

Browser: Chrome 146

Operating system: Linux

Device Platform: Desktop

Date tested: 4 months ago

for

200/s

forEach

171/s

array.entries

160/s

View exact numbers

Script Preparation code:

const arr = Array.from({length: 1000}, () => Math.floor(Math.random() * 40));

Tests:

forEach
arr.forEach((item, index) => console.log(item + index))
array.entries
for(var [index, item] of arr.entries()){ console.log(item + index); }
for
for( var index = 0; index < arr.length; index++ ){ console.log(arr[index] + index); }