Delete data from an object

let obj = {
    id: 1,
    name: "John",
    username: "Doe"
}

obj.name = null;

console.log(obj);
//Result:
//{id: 1, name: null, username: 'Doe'}

delete obj.name;
console.log(obj);

//Result:
//{id: 1, username: 'Doe'}