Script Preparation code:
AخA
 
var count = 4;
var arr = new Array(count);
arr.fill(null);
arr = arr.map((el, idx) => ({ id: idx }));
var randomEl = arr[Math.floor(Math.random() * count)];
var randomId = randomEl.id;
Tests:
  • findIndex

     
    var index = arr.findIndex((el) => el.id === randomId);
  • indexOf

     
    var index = arr.indexOf(randomEl);
Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

  • Test case name Result
    findIndex
    indexOf

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: one year ago)
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36
Chrome 122 on Windows
View result in a separate tab
Test name Executions per second
findIndex 3410205.2 Ops/sec
indexOf 9020249.0 Ops/sec