Run results for: JS filter vs splice +indexOf

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:135.0) Gecko/20100101 Firefox/135.0

Browser: Firefox 135

Operating system: Windows

Device Platform: Desktop

Date tested: 17 days ago

Test name	Executions per second
Array.filter	1575.6 Ops/sec
Array.splice + Array.indexOf	48390.9 Ops/sec

Script Preparation code:

var arr = [];
var i = 0;

while (i <= 1E5) arr[i] = i++;

​x
 
var arr = [];var i = 0;​while (i <= 1E5) arr[i] = i++;

Tests:

Array.filter
const item = arr.filter(item => item !== 1E5);
const item = arr.filter(item => item !== 1E5);
Array.splice + Array.indexOf
const index = arr.splice(arr.indexOf(1E5), 1);
const index = arr.splice(arr.indexOf(1E5), 1);