Run results for: delete vs null vs undefined vs void 0 vs Object.create(null) propertie

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36

Browser: Chrome 95

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Tests:

null
for(let i = 0; i < 1000;i++) { let a = { a: 999, b: 3000 } a.a = null; a.b = null; }
undefined
for(var i = 0; i < 1000;i++) { let a = { a: 999, b: 3000 } a.a = undefined; a.b = undefined; }
delete
for(var i = 0; i < 1000;i++) { let a = { a: 999, b: 3000 } delete a.a; delete a.b; }