JSFiddle - React, Tailwind, and code Playground

HTML

<p>Results:</p>

<div id='results'>
</div>

JavaScript

function add() {
    var result = 0;
    for (var i = 0; i < arguments.length; i++) {
        result = result + arguments[i];
    }

    return result;
}

$(document).ready(function() {

    var resultDiv = document.getElementById('results'),
        result = add(1, 2, 3),
        result2Arguments = add(1, 2),
        result4Arguments = add(1, 2, 3, 4);

    resultDiv.innerHTML += result + "<br />";
    resultDiv.innerHTML += result2Arguments + "<br />";
    resultDiv.innerHTML += result4Arguments + "<br />";
});