JSFiddle - React, Tailwind, and code Playground

HTML

<input type="button" onclick="autocomplete();" value="Click me!" />
    <input type="button" onclick="whatever();" value="Me too please!" />

JavaScript

function autocomplete() {
    alert("This doesn't work, only in IE compatible mode or other, lder browsers :(");
}

function whatever() {
    alert("This works, obviously...");
}