Run details:
Mozilla/5.0 (Linux; Android 10; SM-A505N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.86 Mobile Safari/537.36
Chrome Mobile 89
Android
Mobile
4 years ago
Test name Executions per second
Control 427282304.0 Ops/sec
localStorage 484904.6 Ops/sec
sessionStorage 484871.1 Ops/sec
Read Array 601813.7 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)]