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

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.5112.114 YaBrowser/22.9.1.1081 Yowser/2.5 Safari/537.36
Yandex Browser 22
Mac OS X 10.15.7
Desktop
2 years ago
Test name Executions per second
Control 739660032.0 Ops/sec
localStorage 1309407.9 Ops/sec
sessionStorage 1493658.5 Ops/sec
Read Array 1678942.8 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)]