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Run results for:
Filtering Large Lists
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=603696" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36
Browser:
Chrome 136
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Benchmark engine:
Benchmark.js
Regex case
54/s
Indexof no trime, begins with
33/s
Indexof trim, begins with
33/s
View exact numbers
Test name
Executions per second
✓
Regex case
54 Ops/sec
Indexof no trime, begins with
33 Ops/sec
Indexof trim, begins with
33 Ops/sec
Script Preparation code:
var list = [...Array(1000000).keys()].map((index) => `ITEM_${index}`); var val = 'ITEM_100';
Tests:
Regex case
const trimVal = val.trim(); const regex = new RegExp(`^${trimVal}`, 'i'); const x = list.filter((item) => { return trimVal !== '' ? regex.test(item) : true; });
Indexof no trime, begins with
const lowerVal = val.toLowerCase(); const x = list.filter((item) => { return val !== '' ? item.toLowerCase().indexOf(lowerVal) === 0: true; });
Indexof trim, begins with
const trimVal = val.trim().toLowerCase(); const x = list.filter((item) => { return trimVal !== '' ? item.toLowerCase().indexOf(trimVal) === 0 : true; });