Run results for: Iterator.from vs array: filter+map

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 YaBrowser/26.8.0.0 Safari/537.36

Browser: Yandex Browser 26

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 days ago

Benchmark engine: Benchmark.js

Iterator.from WITHOUT collecting to array

14.5M/s

Array

1K/s

Iterator.from WITH collecting to array

478/s

View exact numbers

Test name	Executions per second
✓ Iterator.from WITHOUT collecting to array	14,450,101 Ops/sec
Array	1,130 Ops/sec
Iterator.from WITH collecting to array	478 Ops/sec

HTML Preparation code:

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

Script Preparation code:

const items = Array(100_000).fill(0).map((_, i) => i);

Tests:

Array
const arrayTransform = items.filter(i => i % 2 === 0).map(n => n * 2);
Iterator.from WITH collecting to array
const iterTransformAsArray = Iterator.from(items).filter(i => i % 2 === 0).map(n => n * 2).toArray();
Iterator.from WITHOUT collecting to array
const iterTransformAsIterator = Iterator.from(items).filter(i => i % 2 === 0).map(n => n * 2);