Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36
Chrome 114
Mac OS X 10.15.7
Desktop
one year ago
Test name Executions per second
Array 60095.6 Ops/sec
Obj 68091.1 Ops/sec
Script Preparation code:
AخA
 
window.data = new Array(1000).fill(0).map(() => [Math.random(), Math.random(), Math.random()]);
Tests:
  • Array

     
    data.map(([c,b,a]) => [a, b, c]).map(([,b]) => b);
  • Obj

     
    data.map(([c,b,a]) => ({a,b,c})).map(({b}) => b);