JSFiddle - React, Tailwind, and code Playground
by WK_of_Angmar
HTML
<button onclick="celsiusToFahrenheit()">Click me</button>
JavaScript
function celsiusToFahrenheit() {
var input = prompt("What is the temperature in degrees Celsius?");
alert("That in degrees Fahrenheit is " + (input*(9/5)+32) + "!");
}