title: The specified value "." cannot be parsed, or is out of range
body: <p>I trying to make a calculator but I have the problem with the &quot;dot&quot; because give me advertisement like this...</p>
  <p>&quot;The specified value &quot;.&quot; cannot be parsed, or is out of range.&quot;</p>
  <p>This is my code...</p>
  <pre><code>numberDot.addEventListener('click', function() {
      numberDot = '.' ;
      input.value = input.value + numberDot;
      console.log(typeof(input.value));
      console.log(input.value);
  });
  </code></pre>