Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36
Chrome 105
Windows
Desktop
2 years ago
Test name Executions per second
Delete 15382308.0 Ops/sec
Undefined 5704988.5 Ops/sec
null 15273010.0 Ops/sec
Script Preparation code:
AخA
 
var obj = {
    property : "value",
    propertyTwo: "value2"
};
Tests:
  • Delete

     
    delete obj.property
  • Undefined

     
    obj.property = undefined;
  • null

     
    obj.property = null;