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Run results for:
Array+fill vs Array.from()
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36
Browser:
Chrome 141
Operating system:
Windows
Device Platform:
Desktop
Date tested:
6 months ago
Test name
Executions per second
Array()
33.6 Ops/sec
Array.from
24.4 Ops/sec
Script Preparation code:
function map(){ return 1 } let obj = {length:1000}, {from}=Array
Tests:
Array()
for(let i = 300; i--;)console.log(Array(1000).fill(1))
Array.from
for(let i = 300; i--;)console.log(from(obj,map))