Run results for: Set vs Object vs Map doing stuff with clones using Object.assign()

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Linux

Device Platform: Desktop

Date tested: 3 months ago

Test name	Executions per second
Set	190.2 Ops/sec
Object	29.2 Ops/sec
Map	90.1 Ops/sec

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);

AخA
 
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_${i}`] = true;
}
let result = 0;
for (let j = 0; j < 100; ++j) {
  const clone = Object.assign({}, obj);
  for (let k = -500; k < 500; ++k) {
    result += clone.hasOwnProperty(`key_${k}`);
  }
}
console.log(result);

 
const obj = {};for (let i = 0; i < 1000; ++i) {  obj[`key_${i}`] = true;}let result = 0;for (let j = 0; j < 100; ++j) {  const clone = Object.assign({}, obj);  for (let k = -500; k < 500; ++k) {    result += clone.hasOwnProperty(`key_${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);

 
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);