Run results for: Object.prototype.hasOwnProperty vs Object in vs Object[] vs Array.indexOf vs Array.includes vs Set.has

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 YaBrowser/25.12.0.0 Safari/537.36

Browser: Yandex Browser 25

Operating system: Windows

Device Platform: Desktop

Date tested: 8 months ago

Benchmark engine: Benchmark.js

Set has

186.1M/s

Object in

79.9M/s

Object.prototype.hasOwnProperty

50.3M/s

direct

35.6M/s

Array includes

1.3M/s

Array.indexOf

1.3M/s

View exact numbers

Test name	Executions per second
✓ Set has	186,063,680 Ops/sec
Object in	79,865,920 Ops/sec
Object.prototype.hasOwnProperty	50,258,352 Ops/sec
direct	35,578,136 Ops/sec
Array includes	1,336,195 Ops/sec
Array.indexOf	1,331,088 Ops/sec

Script Preparation code:

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

Tests:

Object.prototype.hasOwnProperty
Object.prototype.hasOwnProperty.call(object, '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)
Set has
set.has('something' + test)