find duplicates

using jquery

by hamzeen hameem

HTML

Duplicates <div id="duplicate-status">found/not found</div>

JavaScript

var names = ["Mike","Matt","Matt","Adam","Jenny","Nancy","Carl"];
var uniqueNames = [];
var counter = 0;
$.each(names, function(i, el) {
    if($.inArray(el, uniqueNames) === -1) {
    	uniqueNames.push(el);
    } else {
    	console.log('duplicate found: ' + el);
    }
    counter++;
});
console.log(counter);