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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_2_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.41 YaBrowser/21.2.0.1122 Yowser/2.5 Safari/537.36

Browser: Yandex Browser 21

Operating system: Mac OS X 11.2.1

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
null	2856560.0 Ops/sec
undefined	5930.0 Ops/sec
Object.create(null)	5137.7 Ops/sec
void 0	2874601.8 Ops/sec

Tests:

null
var a = 999; for(var i = 0; i < 1000;i++) { a = null; }
undefined
var a = 999; for(var i = 0; i < 1000;i++) { a = undefined; }
Object.create(null)
var a = 999; for(var i = 0; i < 1000;i++) { a = Object.create(null); }
void 0
var a = 999; for(var i = 0; i < 1000;i++) { a = void 0; }