Run results for: Array.from vs Array.fill

Run details:

User agent: Mozilla/5.0 (Linux; U; Android 10; ru-ru; Redmi 8 Build/QKQ1.191014.001) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.116 Mobile Safari/537.36 XiaoMi/MiuiBrowser/12.18.3-gn

Browser: Chrome Mobile 89

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
from	4.0 Ops/sec
fill	41.4 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)) }