Run results for: Typeof x === 'undefined' vs x === undefined (test without syntax error)

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.84 Safari/537.36
Chrome 99
Windows
Desktop
one year ago
Test name Executions per second
Typeof check 795415936.0 Ops/sec
Strict equality 310433248.0 Ops/sec
Script Preparation code:
Tests:

  • Typeof check

  • Strict equality