Run results for: null vs undefined iiffe

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 129

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

undefined case

1.0M/s

null case

994K/s

View exact numbers

Test name	Executions per second
✓ undefined case	1,026,648 Ops/sec
null case	994,479 Ops/sec

Tests:

null case
for (let i = 0; i < 1000; i++) { null; }
undefined case
(function(undefined) { for (let i = 0; i < 1000; i++) { undefined; } })()