Run results for: Object.hasOwnProperty vs Object in vs Object[] vs Array.indexOf vs Array.includes vs Reflect.has()

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:103.0) Gecko/20100101 Firefox/103.0

Browser: Firefox 103

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Object.hasOwnProperty	863737856.0 Ops/sec
Object in	958741056.0 Ops/sec
Array.indexOf	836976.8 Ops/sec
direct	1192298880.0 Ops/sec
Array includes	1144248.4 Ops/sec
Object.prototype.hasOwnProperty.call(this.storeIndex, index)	827597632.0 Ops/sec
Reflect.has()	13709051.0 Ops/sec

Script Preparation code:

  var object = {},
      array = [],
      i, test = 1000;
  
  for (i = 0; i < 1000; i++) {
   object['something' + i] = true;
   array.push('something' + i);
  }

Tests:

Object.hasOwnProperty
object.hasOwnProperty('something' + test)
Object in
('something' + test) in object
Array.indexOf
array.indexOf('something' + test) !== -1
direct
object['something' + test] === true
Array includes
array.includes('something' + test)
Object.prototype.hasOwnProperty.call(this.storeIndex, index)
Object.prototype.hasOwnProperty.call(object, 'something' + test)
Reflect.has()
Reflect.has(object, 'something' + test)

Run results for: Object.hasOwnProperty vs Object in vs Object[] vs Array.indexOf vs Array.includes vs Reflect.has()

Object.hasOwnProperty

Object in

Array.indexOf

direct

Array includes

Object.prototype.hasOwnProperty.call(this.storeIndex, index)

Reflect.has()