Elastic find index fast
Measuring which is faster
Date tested:
one year ago
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/117.0
Test name
Executions per second
Array.prototype.findIndex
3141.1 Ops/sec
For loop
11428.8 Ops/sec
While loop
8410.7 Ops/sec
Benchmark definition (click to collapse):
Script Preparation code:
var arr = []; var i = 0; while (i <= 1E5) arr[i] = i++;
Tests:
Array.prototype.findIndex
const index = arr.findIndex(item => item === 1E5);
For loop
var index = -1 for(var i = 0; i < arr.length; i++) { if(arr[i] === 1E5) { index = i; break; } }
While loop
let index = -1; let i = 0 const len = arr.length; while (++i < len) { if (arr[i] === 1E5) { index = i break; } }
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