Benchmark: For i / For of / ForEach

Script Preparation code:

var testingArray = new Array(1000).fill(1);

Tests:

For i
const newArr = []; for (let i = 0, item; (item = testingArray[i]); i += 1) { newArr.push(item); }
For of
const newArr = []; for (const item of testingArray) { newArr.push(item); }
ForEach
const newArr = []; testingArray.forEach(item => { newArr.push(item); });

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_2_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.82 Safari/537.36

Browser/OS: Chrome 89 on Mac OS X 11.2.2

For i / For of / ForEach (version: 1)