“Cegah menambahkan item dua kali dalam array javascript” Kode Jawaban

Cegah menambahkan item dua kali dalam array javascript

var names = ["Mike","Matt","Nancy","Adam","Jenny","Nancy","Carl"];
var uniqueNames = [];
$.each(names, function(i, el){
if($.inArray(el, uniqueNames) === -1) uniqueNames.push(el);
});