MeasureThat.net

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

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Run details:
Mozilla/5.0 (X11; FreeBSD amd64; rv:66.0) Gecko/20100101 Firefox/66.0
Firefox 66
FreeBSD
Desktop
5 years ago
Test name Executions per second
Object.hasOwnProperty 19463532.0 Ops/sec
Object in 18558876.0 Ops/sec
Array.indexOf 525871.9 Ops/sec
direct 18242542.0 Ops/sec
Array includes 521310.6 Ops/sec
Script Preparation code:
AخA
 
  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)