Run results for: Benchmark: chunk array by slice VS splice

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:6.8) Goanna/20260403 PaleMoon/34.2.0

Browser: Pale Moon (Firefox Variant) 34

Operating system: Windows

Device Platform: Desktop

Date tested: 4 months ago

slice

5.0M/s

splice

5.0M/s

View exact numbers

Test name	Executions per second
✓ slice	5,043,978 Ops/sec
splice	5,024,632 Ops/sec

Script Preparation code:

const chunkSize = 100
const arr = [];
for (var i = 0; i < 10000; i++) {
  list.push(i);
}

Tests:

slice
const res = [] for (let i = 0; i < arr.length; i += chunkSize) { res.push(arr.slice(i, i + chunkSize)) }
splice
const res = [] while (arr.length > 0) { const chunk = arr.splice(0, chunkSize) res.push(chunk) }