Run results for: Spread vs Array.from performance

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36 Edg/133.0.0.0

Browser: Chrome 133

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

Spread

4.4M/s

Array.from

2.1M/s

Spread (more elements)

5K/s

Array.from (more elements)

3K/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('');