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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser: Chrome 133

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

Map.get()

101.5M/s

Array.find()

25K/s

View exact numbers

Test name	Executions per second
✓ Map.get()	101,490,296 Ops/sec
Array.find()	24,993 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))