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Run results for:
isArray?
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray#instanceof_vs._array.isarray
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:147.0) Gecko/20100101 Firefox/147.0
Browser:
Firefox 147
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 months ago
Test name
Executions per second
Array.isArray
142717072.0 Ops/sec
instanceof
84672784.0 Ops/sec
constructor
1627838208.0 Ops/sec
Object.getPrototypeOf
75200704.0 Ops/sec
Object.prototype.toString
77374032.0 Ops/sec
Tests:
Array.isArray
Array.isArray([])
instanceof
[] instanceof Array
constructor
[].constructor === Array
Object.getPrototypeOf
Object.getPrototypeOf([]) === Array.prototype
Object.prototype.toString
Object.prototype.toString.call([]) === "[object Array]"