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 (Linux; Android 10; MAR-LX1A) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Mobile Safari/537.36
Chrome Mobile 110
Android
Mobile
one year ago
Test name Executions per second
typeof 3971589.8 Ops/sec
constructor 956482.3 Ops/sec
Script Preparation code:
Tests:

  • typeof

  • constructor

;