MeasureThat.net

Run results for: Check function. typeof vs constructor + null check

Difference between typeof(a => {}) === 'function' and (a => {}).constructor === Function

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Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.64 Safari/537.36
Chrome 101
Linux
Desktop
2 years ago
Test name Executions per second
typeof 13131533.0 Ops/sec
constructor 3352288.5 Ops/sec
Script Preparation code:
Tests:

  • typeof

  • constructor

;