Benchmark: Set vs Object vs Map doing stuff

Tests:

Set
const set = new Set(); for (let i = 0; i < 10000; ++i) { set.add(`key_${i}`); } for (let j = 0; j < 10000; ++j) { set.add(`key_${j}`); } let result = 0; for (let k = 0; k < 20000; ++k) { result += set.has(`key_${k}`); } console.log(result);
Object
const obj = {}; for (let i = 0; i < 10000; ++i) { obj[`key_${i}`] = true; } for (let j = 0; j < 10000; ++j) { obj[`key_${j}`] = 1; } let result = 0; for (let k = 0; k < 20000; ++k) { result += obj.hasOwnProperty(`key_${k}`); } console.log(result);
Map
const map = new Map(); for (let i = 0; i < 10000; ++i) { map.set(`key_${i}`, true); } for (let j = 0; j < 10000; ++j) { map.set(`key_${j}`, 1); } let result = 0; for (let k = 0; k < 20000; ++k) { result += map.get(`key_${k}`); } console.log(result);

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36

Browser/OS: Chrome 115 on Mac OS X 10.15.7

Set vs Object vs Map doing stuff (version: 0)