Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:126.0) Gecko/20100101 Firefox/126.0
Firefox 126
Windows
Desktop
one year ago
Test name Executions per second
Control 2750431488.0 Ops/sec
localStorage 6198656.5 Ops/sec
sessionStorage 8615369.0 Ops/sec
Read Array 525340928.0 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)]