unique data in array

unique data in array

by Tapan Acharjee

JavaScript

/* array_elements = ["a", "b", "c", "d", "e", "a", "b", "c", "f", "g", "h", "h", "h", "e", "a"]; */
 array_elements = [1,2,3,4,5,6,7,1,4,5,4,7,8,9,1,2,4,5,3];

    array_elements.sort();
    console.log(array_elements.sort());

    var current = null;
    var cnt = 0;
    for (var i = 0; i < array_elements.length; i++) {debugger
        if (array_elements[i] != current) {
            if (cnt > 1) {
                document.write(current + ' comes --> ' + cnt + ' times<br>');
            }
            current = array_elements[i];
            cnt = 1;
        } else {
            cnt++;
        }
    }