empujando a una matriz
array = ["hello"]
array.push("world");
console.log(array);
//output =>
["hello", "world"]
array = ["hello"]
array.push("world");
console.log(array);
//output =>
["hello", "world"]array.push(element)var array = [];
var element = "anything you want in the array";
array.push(element); // array = [ "anything you want in the array" ]/*The push() method adds elements to the end of an array, and unshift() adds
elements to the beginning.*/
let twentyThree = 'XXIII';
let romanNumerals = ['XXI', 'XXII'];
romanNumerals.push(twentyThree);
// now equals ['XIX', 'XX', 'XXI', 'XXII', 'XXIII']
romanNumerals.unshift('XIX', 'XX');
// now equals ['XIX', 'XX', 'XXI', 'XXII']var vegetables = ['Capsicum',' Carrot','Cucumber','Onion'];
vegetables.push('Okra');
//expected output ['Capsicum',' Carrot','Cucumber','Onion','Okra'];
// .push adds a thing at the last of an arraylet monTableau2D = [
['Mark' , 'jeff' , 'Bill'] ,
['Zuckerberg' , 'Bezos' , 'Gates']
] ;
monTableau2D[1].push('test') ;
console.log(monTableau2D) ;
//////////////////
let monTableau = ['un', 'deux','trois', 'quatre'] ;
monTableau.push('cinq') ;
console.log(monTableau) ;
///////////////////
let monTableauAssociatif = {
'prenom' : 'Mark' ,
'nom' : 'Zuckerberg' ,
'poste' : 'Pdg de Facebook',
} ;
monTableauAssociatif['nationalite'] = 'Américaine' ;
console.log(monTableauAssociatif) ;