Run results for: Set vs Object vs Map doing stuff with clones

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.1 Safari/605.1.15

Browser: Safari 17

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Tests:

Set
const set = new Set(); for (let i = 0; i < 1000; ++i) { set.add(`key_${i}`); } let result = 0; for (let j = 0; j < 100; ++j) { const clone = new Set(set); for (let k = -500; k < 500; ++k) { result += clone.has(`key_${k}`); } } console.log(result);
Object
const obj = {}; for (let i = 0; i < 1000; ++i) { obj[`key_${i}`] = true; } let result = 0; for (let j = 0; j < 100; ++j) { const clone = {...obj}; for (let k = -500; k < 500; ++k) { result += clone.hasOwnProperty(`key_${k}`); } } console.log(result);
Map
const map = new Map(); for (let i = 0; i < 1000; ++i) { map.set(`key_${i}`, true); } let result = 0; for (let j = 0; j < 100; ++j) { const clone = new Map(map); for (let k = -500; k < 500; ++k) { result += clone.get(`key_${k}`); } } console.log(result);