Run results for: Array.includes vs Object.hasOwnProperty vs Reflect.has vs object[id]

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:143.0) Gecko/20100101 Firefox/143.0

Browser: Firefox 143

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

object.hasOwnProperty

627K/s

object[field]

529K/s

Object.prototype.hasOwnProperty

503K/s

Reflect.has

453K/s

array.includes

717/s

View exact numbers

Test name	Executions per second
✓ object.hasOwnProperty	627,104 Ops/sec
object[field]	528,885 Ops/sec
Object.prototype.hasOwnProperty	503,252 Ops/sec
Reflect.has	453,113 Ops/sec
array.includes	717 Ops/sec

Script Preparation code:

var ids = [''];
var entities = { '': { id: '', number: 10000 } };
var id = '';

for (let i = 0; i < 10000; i++) {
  id = String(i);
  ids.push(id);
  entities[id] = { id, number: i }
}

function getRandomInt(min, max) {
  min = Math.ceil(min);
  max = Math.floor(max);
  return Math.floor(Math.random() * (max - min) + min); //The maximum is exclusive and the minimum is inclusive
}

var idsFind = [''];

for (let i = 0; i < 100; i++) {
  idsFind.push(String(getRandomInt(0, 20000)));
}

Tests:

array.includes
var result = []; for (const id of idsFind) { if (ids.includes(id)) { result.push(entities[id]) } } return result
Object.prototype.hasOwnProperty
var result = []; for (const id of idsFind) { if (Object.prototype.hasOwnProperty.call(entities, id)) { result.push(entities[id]) } } return result
object.hasOwnProperty
var result = []; for (const id of idsFind) { if (entities.hasOwnProperty(id)) { result.push(entities[id]) } } return result
Reflect.has
var result = []; for (const id of idsFind) { if (Reflect.has(entities, id)) { result.push(entities[id]) } } return result
object[field]
var result = []; for (const id of idsFind) { if (entities[id] != null) { result.push(entities[id]) } } return result