JavaScript Internals (521 Qs)•Part 2: Promises, Callbacks, Async & Strict Mode (54 - 103)
What is the purpose of the delete operator
The delete operator is used to delete the property as well as its value.
javascript
var user = { firstName: "John", lastName: "Doe", age: 20 };
delete user.age;
console.log(user); // {firstName: "John", lastName:"Doe"}