// delete an element from the dom var elem = document.querySelector('#some-element'); elem.parentNode.removeChild(elem); // keep element in dom var elem = document.querySelector('#some-element'); elem.style.display = 'none';
let person = { firstname: 'John', lastname: 'Doe' } console.log(person.firstname); // expected output: "John" delete person.firstname; console.log(person.firstname); // expected output: undefined
var ourDog = { "name": "Camper", "legs": 4, "tails": 1, "friends": ["everything!"], "bark": "bow-wow" }; delete ourDog.bark;
delete obj.firstname;
let monTableauAssociatif = { 'prenom' : 'Mark' , 'nom' : 'Zuckerberg' , 'poste' : 'Pdg de Facebook', } ; delete(monTableauAssociatif.poste) console.log(monTableauAssociatif) ;