JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" id="userProblem" size="100">
<input type="submit" id="solveButton" value="Solve">
<div id="answerDiv"></div>

JavaScript

solveButton.onclick = function () {
	var answer = eval(userProblem.value);
	
	answerDiv.innerHTML = answer;
};