JSFiddle - React, Tailwind, and code Playground

HTML

<div id="test"></div>

JavaScript

var x = document.getElementById("test"),
    s = ["John", "Alex", "Mark"];

for (var i = 0; i < s.length; i++) {
    (function(i) {
        setTimeout(function() {
            x.innerHTML = s[i];
        }, 2000 * i);
    })(i);
}