Run results for: Object vs Map base op

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36 Edg/125.0.0.0

Browser: Chrome 125

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
✓ Map	165,054 Ops/sec
Object	71,801 Ops/sec

Tests:

Object
const numElements = 100; // Generate random keys and values for benchmarking const generateData = (count) => { const data = []; for (let i = 0; i < count; i++) { data.push([`key${i}`, `value${i}`]); } return data; }; const testData = generateData(numElements); // Object Benchmark Functions const benchmarkObject = () => { const obj = {}; testData.forEach(([key, value]) => { obj[key] = value; }); testData.forEach(([key, _]) => { obj[key]; }); testData.forEach(([key, _]) => { const value = obj[key]; }); testData.forEach(([key, _]) => { obj.hasOwnProperty(key); !obj[key]; }); }; benchmarkObject();
Map
const numElements = 100; // Generate random keys and values for benchmarking const generateData = (count) => { const data = []; for (let i = 0; i < count; i++) { data.push([`key${i}`, `value${i}`]); } return data; }; const testData = generateData(numElements); const benchmarkMap = () => { const map = new Map(); testData.forEach(([key, value]) => { map.set(key, value); }); testData.forEach(([key, _]) => { map.get(key); }); testData.forEach(([key, _]) => { const value = map.get(key); }); testData.forEach(([key, _]) => { map.has(key); }); }; benchmarkMap()