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Run results for:
findIndex vs map & indexOf vs find
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36
Browser:
Chrome 143
Operating system:
Windows
Device Platform:
Desktop
Date tested:
4 months ago
Test name
Executions per second
findIndex
3810162.5 Ops/sec
map and indexOf
13061.8 Ops/sec
find
41930.6 Ops/sec
Script Preparation code:
var arr = new Array(15000); arr.fill({ id: 0 }); arr = arr.map((el, idx) => el.id = idx); var foo = Math.floor(Math.random() * 15000);
Tests:
findIndex
var index = arr.indexOf(foo);
map and indexOf
var index = arr.map(o => o.id).indexOf(foo);
find
var found = arr.find(e => e.id === foo)