Run results for: Array.from vs Array.fill

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36 OPR/112.0.0.0

Browser: Opera 112

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

fill

218/s

from

23/s

View exact numbers

Test name	Executions per second
✓ fill	218 Ops/sec
from	23 Ops/sec

Tests:

from
let n = 10000, length = 50 const result = [] for (let i = 0; i < n; ++i) { result.push(Array.from({length:length}).map((_, i) => i + 1)) }
fill
let n = 10000, length = 50 const result = [] for (let i = 0; i < n; ++i) { result.push(Array(5).fill(0).map(i => i + 1)) }