Strings: Username Creation: JS
<script type="text/javascript"> function generateUsername(){ document.getElementById('usernameResult').innerHTML = ''; first_name = document.getElementById('first_name').value; last_name = document.getElementById('last_name').value; username = first_name.substring(0,3) + last_name; document.getElementById('usernameResult').innerHTML = 'Generated Username: ' + username; }</script>