Run results for: Remove an item from array; indexOf + splice vs filter 2

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 17

Operating system: iOS 17.4

Device Platform: Mobile

Date tested: 2 years ago

indexOf + splice

4.0M/s

filter

3.4M/s

View exact numbers

Test name	Executions per second
✓ indexOf + splice	4,042,896 Ops/sec
filter	3,423,417 Ops/sec

Script Preparation code:

var arr = [];
for (var i = 0; i < 10000; i++) {
  arr.push(Math.floor(Math.random() * 1000));
}
var itemToRemove = arr[Math.floor(Math.random() * 10000)]

Tests:

indexOf + splice
arr.splice(arr.indexOf(itemToRemove), 1)
filter
arr = arr.filter(el => el !== itemToRemove)