MeasureThat.net

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

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

Go to the benchmark
Run details:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Mobile Safari/537.36
Chrome Mobile 120
Android
Mobile
10 months ago
Test name Executions per second
typeof 17204464.0 Ops/sec
constructor 4326905.5 Ops/sec
Script Preparation code:
Tests:

  • typeof

  • constructor

;