Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36
Chrome 108
Windows
Desktop
2 years ago
Test name Executions per second
Control 1054989056.0 Ops/sec
localStorage 2896676.2 Ops/sec
sessionStorage 2947181.5 Ops/sec
Read Array 3413707.5 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)]