Run results for: Array.from vs Array.fill

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:125.0) Gecko/20100101 Firefox/125.0

Browser: Firefox 125

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

fill

1K/s

from

205/s

View exact numbers

Test name	Executions per second
✓ fill	1,236 Ops/sec
from	205 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)) }