Run results for: Array isArray vs typeof vs array || []

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Run details:
Mozilla/5.0 (iPhone; CPU iPhone OS 18_2_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.2 Mobile/15E148 Safari/604.1
Mobile Safari 18
iOS 18.2.1
Mobile
one year ago
typeof
151.5M/s
isArray
147.4M/s
array || []
146.7M/s
instanceOf
126.5M/s
View exact numbers
Test name Executions per second
✓ typeof 151,512,944 Ops/sec
isArray 147,435,040 Ops/sec
array || [] 146,745,568 Ops/sec
instanceOf 126,509,232 Ops/sec
Script Preparation code:
Tests: