JSFiddle - React, Tailwind, and code Playground

HTML

<p id="gameresult"></p>

JavaScript

function myFunction() {
    //you should validate g.time.time to verify you don't divide by zero
    var result = '<ul><li>You type ' + 20 + ' characters in ' + 10 + ' seconds.</li><li><u>Your speed</u> : about ' + Math.floor((Math.ceil(20 / 5) / 10) * 60) + ' words per minutes!</li></ul>';
   $('#gameresult').append(result);
}
myFunction();