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

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; JNY-LX1 Build/HUAWEIJNY-L21; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/88.0.4324.93 Mobile Safari/537.36 Reddit/Version 2022.20.0/Build 487703/Android 10

Browser: Chrome Mobile 88

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
null	1058879.5 Ops/sec
undefined	2960.7 Ops/sec
Object.create(null)	2571.1 Ops/sec
void 0	1061918.8 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; }