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<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
</head>
<body>

<script id="jsbin-javascript">
function ucFirst(str) {
  return str.charAt(0).toUpperCase() + str.slice(1);
}

document.write(ucFirst("javascript"))
</script>


<script id="jsbin-source-javascript" type="text/javascript">function ucFirst(str) {
  return str.charAt(0).toUpperCase() + str.slice(1);
}

document.write(ucFirst("javascript"))</script></body>
</html>