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Run results for:
set.has vs. array.includes (find 999,999 in 1,000,000)
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Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64; rv:151.0) Gecko/20100101 Firefox/151.0
Browser:
Firefox 151
Operating system:
Linux
Device Platform:
Desktop
Date tested:
3 days ago
Test name
Executions per second
includes
1005.2 Ops/sec
lookup
2024766976.0 Ops/sec
Script Preparation code:
var a = Array.from({length: 1000000}, (val, index) => index); var b = new Set(a)
Tests:
includes
return a.includes(999999)
lookup
return b.has(999999)