JSFiddle - React, Tailwind, and code Playground

HTML

<input id = "typed" type=text name="typed" size=45>
            <input type=button value="FINISH!"  name="finish"onClick="finishTest()">

JavaScript

var txtTyped = document.getElementById('typed');

function finishTest() {
    alert("Im pressed");
}

document.getElementById('typed').addEventListener('keyup', function(e) {
   if (e.keyCode === 13)
       finishTest();
});