Cacher is the code snippet organizer for pro developers

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<div class="jumbotron">
  <h1 class="display-4">Test Js</h1>
  <input type=text class="lead" id="value" placeholder="Insert value."></input>
  <button onclick="calculate()">Calculate Valor</button>
  <hr class="my-4">
  <p class="lead" id="answer"></p>
</div>

function square(valor) {
  return valor*valor;
}

function calculate() {
  let valor = document.getElementById("value").value;
  console.log(valor);
  var txt = "El resultado es: " + square(valor);
  var i = 0;
  var speed = 50;
  function typeWriter() {
  if (i < txt.length) {
    let rest = document.getElementById("answer").innerHTML += txt.charAt(i);
    i++;
    setTimeout(typeWriter, speed);
      }
  }
  document.getElementById("answer").innerHTML = "";
  typeWriter();
}

#answer {animation-timing-function: ease;}