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Run results for: localStorage vs sessionStorage vs Reading a Hardcoded Array Speedtest

Go to the benchmark
Run details:
Mozilla/5.0 (Linux; Android 9; Redmi Note 7 Pro Build/PKQ1.181203.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/102.0.5005.125 Mobile Safari/537.36
Chrome Mobile 102
Android
Mobile
2 years ago
Test name Executions per second
Control 831025984.0 Ops/sec
localStorage 525717.9 Ops/sec
sessionStorage 510431.3 Ops/sec
Read Array 585363.4 Ops/sec
Script Preparation code:
AخA
 
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)]