Run results for: mybenchmark123313131112332432130112

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser: Chrome 119

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

map.set

5.4M/s

in obj

5.3M/s

set.has

5.3M/s

obj[key]

5.3M/s

array.includes

5.2M/s

obj.hasownproperty

5.1M/s

View exact numbers

Test name	Executions per second
✓ map.set	5,419,878 Ops/sec
in obj	5,278,378 Ops/sec
set.has	5,267,181 Ops/sec
obj[key]	5,256,088 Ops/sec
array.includes	5,212,498 Ops/sec
obj.hasownproperty	5,140,730 Ops/sec

Script Preparation code:

var theArr = Array.from({ length: 30 }, (_, el) => el)
var theSet = new Set(theArr)
var theObject = Object.assign({}, ...theArr.map(num => ({ [num]: true })))
var theMap = new Map(theArr.map(num => [num, true]))
var theTarget = 27



function isTargetThereFor(arr, target) {
  const len = arr.length
  for (let i = 0; i < len; i++) {
    if (arr[i] === target) {
      return true
    }
  }
  return false
}
function isTargetThereForReverse(arr, target) {
  const len = arr.length
  for (let i = len; i > 0; i--) {
    if (arr[i] === target) {
      return true
    }
  }
  return false
}

function isTargetThereIncludes(arr, target) {
  return arr.includes(target)
}

// Set

function isTargetThereSet(numberSet, target) {
  return numberSet.has(target)
}

// Object 

function isTargetThereHasOwnProperty(obj, target) {
  return obj.hasOwnProperty(target)
}
function isTargetThereIn(obj, target) {
  return target in obj
}
function isTargetThereSelectKey(obj, target) {
  return obj[target]
}

// Map

function isTargetThereMap(numberMap, target) {
  return numberMap.has(target)
}

Tests:

array.includes
isTargetThereIncludes(theArr, theTarget);
set.has
isTargetThereSet(theSet, theTarget);
obj.hasownproperty
isTargetThereHasOwnProperty(theObject, theTarget);
in obj
isTargetThereIn(theObject, theTarget);
obj[key]
isTargetThereSelectKey(theObject, theTarget)
map.set
isTargetThereMap(theMap, theTarget)