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Run results for:
Object.prototype.hasOwnProperty vs Object in vs Object[] vs Array.indexOf vs Array.includes vs Set.has
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<iframe src="https://measurethat.net/Embed?id=624622" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36 Edg/144.0.0.0
Browser:
Chrome 144
Operating system:
Windows
Device Platform:
Desktop
Date tested:
3 months ago
Test name
Executions per second
Object.prototype.hasOwnProperty
8946884.0 Ops/sec
Object in
9662752.0 Ops/sec
Array.indexOf
870425.8 Ops/sec
direct
11409028.0 Ops/sec
Array includes
872248.6 Ops/sec
Set has
6763796.5 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)