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

Run details:

User agent: Mozilla/5.0 (Linux; Android 12; SM-G973U Build/SP1A.210812.016; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/103.0.5060.70 Mobile Safari/537.36

Browser: Chrome Mobile 103

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
null	1344616.6 Ops/sec
undefined	4688.2 Ops/sec
Object.create(null)	4170.9 Ops/sec
void 0	1354512.5 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; }