Run results for: JS iterator vs array (big)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:141.0) Gecko/20100101 Firefox/141.0

Browser: Firefox 141

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Array

24K/s

Iterator

2K/s

View exact numbers

Test name	Executions per second
✓ Array	23,905 Ops/sec
Iterator	1,957 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

const items = Array(10000).fill(0).map((_, i) => i);

Tests:

Array
const arrayTransform = items.filter(i => i % 2 === 0).map(n => n * 2);
Iterator
const iterTransform = items.values().filter(i => i % 2 === 0).map(n => n * 2).toArray();