Run results for: Map.get() vs Array.find()

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:123.0) Gecko/20100101 Firefox/123.0

Browser: Firefox 123

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Map.get()

516.1M/s

Array.find()

6K/s

View exact numbers

Test name	Executions per second
✓ Map.get()	516,114,848 Ops/sec
Array.find()	5,570 Ops/sec

Script Preparation code:

dataArr = [...Array(10000)].map((_, id) => ({ id, data: Math.random() }));
dataMap = new Map(dataArr.map(v => [v.id, v]));

Tests:

Array.find()
dataArr.find((item) => item.id === Math.floor(Math.random() * 10000))
Map.get()
dataMap.get(Math.floor(Math.random() * 10000))