Run results for: Delete vs set undefined for Object field

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:143.0) Gecko/20100101 Firefox/143.0

Browser: Firefox 143

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 11 months ago

Set undefined

1058.2M/s

Delete

63.7M/s

View exact numbers

Test name	Executions per second
✓ Set undefined	1,058,150,592 Ops/sec
Delete	63,654,488 Ops/sec

Script Preparation code:

var obj = {a:1, b:2, c:3, d:4};

Tests: