JSFiddle - React, Tailwind, and code Playground

by alirokni

HTML

<div id="arr"></div>

JavaScript

function setIt() {
    var array = [1, 2, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 8];
    var temp = {};
    for (var i = 0; i < array.length; i++) {
        temp[array[i]] = null; // objects accepts only unique keys
    }
    var r = [];
    for (var k in temp) {
        r.push(k);
    }
    return r;
}

document.getElementById('arr').innerHTML = setIt();