Run results for: Spread vs Array.from performance

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.2.1 Safari/605.1.15

Browser: Safari 17

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Array.from

233K/s

Spread

221K/s

Array.from (more elements)

231/s

Spread (more elements)

225/s

View exact numbers

Tests:

Spread
[...new Array(10)].map(() => (Math.trunc(Math.random() * 36)).toString(36)).join('');
Array.from
Array.from({ length: 10 }, () => (Math.trunc(Math.random() * 36)).toString(36)).join('');
Spread (more elements)
[...new Array(10000)].map(() => (Math.trunc(Math.random() * 36)).toString(36)).join('');
Array.from (more elements)
Array.from({ length: 10000 }, () => (Math.trunc(Math.random() * 36)).toString(36)).join('');