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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser: Chrome 133

Operating system: Windows

Device Platform: Desktop

Date tested: 2 months ago

Tests:

var a = 999;

for(var i = 0; i < 1000;i++) {
   a = null;
}

​x
 
var a = 999;​for(var i = 0; i < 1000;i++) {   a = null;}

var a = 999;

for(var i = 0; i < 1000;i++) {
   a = undefined;
}

 
var a = 999;​for(var i = 0; i < 1000;i++) {   a = undefined;}

var a = 999;

for(var i = 0; i < 1000;i++) {
   a = void 0;
}

 
var a = 999;​for(var i = 0; i < 1000;i++) {   a = void 0;}