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Run results for:
localStorage vs sessionStorage vs Reading a Hardcoded Array Speedtest
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=562256" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36 Edg/130.0.0.0
Browser:
Chrome 130
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
Control
33.4M/s
localStorage
3.3M/s
sessionStorage
2.6M/s
Read Array
1.6M/s
View exact numbers
Test name
Executions per second
✓
Control
33,434,150 Ops/sec
localStorage
3,270,218 Ops/sec
sessionStorage
2,552,699 Ops/sec
Read Array
1,564,405 Ops/sec
Script Preparation code:
localStorage.setItem('foo', 'bar') sessionStorage.setItem('foo', 'bar') var ARR = ['bar'];
Tests:
Control
var FOO = 'bar';
localStorage
var FOO = localStorage.getItem('foo');
sessionStorage
var FOO = sessionStorage.getItem('foo');
Read Array
var FOO = ARR[Math.floor(Math.random() * ARR.length)]