Run results for: null vs undefined iiffe

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0

Browser: Firefox 115

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

null case

2.0M/s

undefined case

1.8M/s

View exact numbers

Test name	Executions per second
✓ null case	1,977,457 Ops/sec
undefined case	1,817,306 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; } })()