Run results for: Push with if vs Map with filter

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 123

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Benchmark engine: Benchmark.js

map with filter

2K/s

Push with if

872/s

View exact numbers

Test name	Executions per second
✓ map with filter	1,770 Ops/sec
Push with if	872 Ops/sec

Script Preparation code:

var strs = Array.from(new Array(10000)).map(() => 'String concat. ')
var result = []

Tests:

Push with if
for (let i = 0; i < strs.length; i++) { if (i % 2 === 0){ result.push(strs[i]) } }
map with filter
result = strs.map((a) => a).filter((a) => a % 2 === 0)