Benchmark: for..of - MeasureThat.net

Script Preparation code:

var arr = new Array(10000).map(()=>Math.random())

Tests:

0
var sum=''; for(const item of arr){ sum+=item; }
1
var sum=''; for(let i=0; i<arr.length; i++){ sum+=arr[i]; }
2
var sum=''; for(let i=0, len=arr.length; i<len; i++){ sum+=arr[i]; }
3 + get link
var sum=''; let arrs = arr; for(let i=0, len=arrs.length; i<len; i++){ sum+=arrs[i]; }
4 + get link
var sum=''; let arrs = arr; for(const item of arrs){ sum+=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 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.75 Safari/537.36

Browser/OS: Chrome 86 on Windows

for..of (version: 0)