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Run results for:
For in vs For of
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0
Browser:
Firefox 134
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
for in
30971.0 Ops/sec
for of
26875.8 Ops/sec
Script Preparation code:
var obj = {a: 1, b: 2, c: 3, d: 4}
Tests:
for in
for (var x in obj) { console.log(x); }
for of
for (var x of Object.keys(obj)) { console.log(x); }