delete object js code example
Example 1: javascript delete key from object
let person = {
firstname: 'John',
lastname: 'Doe'
}
console.log(person.firstname);
// expected output: "John"
delete person.firstname;
console.log(person.firstname);
// expected output: undefined
Example 2: javascript remove property from object
var person = {"first_name": "Billy","last_name": "Johnson"};
delete person.last_name; //delete last_name property
Example 3: how to remove a property from an object in javascript
var person = {
name: "Harry",
age: 16,
gender: "Male"
};
// Deleting a property completely
delete person.age;
alert(person.age); // Outputs: undefined
console.log(person); // Prints: {name: "Harry", gender: "Male"}
Example 4: javascript remove object key
var obj = {a: 5, b: 3};
delete obj["a"];
console.log(obj); // {b: 3}
Example 5: nodejs delete object key
delete obj.firstname;
Example 6: delete js
let monTableauAssociatif = {
'prenom' : 'Mark' ,
'nom' : 'Zuckerberg' ,
'poste' : 'Pdg de Facebook',
} ;
delete(monTableauAssociatif.poste)
console.log(monTableauAssociatif) ;