Uncaught ReferenceError: $ is not defined (JavaScript/HTML in PHP) [duplicate]

Question

This script I have on my site is causing some unexpected error: Uncaught ReferenceError: $ is not defined it should rewrite function of enter to act as a tab within the inputs on site form instead of submitting that form.

<script type="text/javascript">
 $('input').keypress(function(e) {
  if (e.which == 13) {
    <--! says error is here within the $ symbol -->
    $(this).next('input').focus();
    e.preventDefault();
  }
 });
</script>

Thx guys im sorry for reposting this .. i though its different problem from other similar ones — Lucián Blažek
– Lucián Blažek, Commented Dec 2, 2015 at 10:31

Nelson Owalo · Accepted Answer · 2015-12-02 10:28:31Z

11

Thats probably because jQuery isn't defined. (I'm assuming you are using juery).

Try including jQuery first:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script type="text/javascript">
 $('input').keypress(function(e) {
  if (e.which == 13) {
    <--! says error is here within the $ symbol -->
    $(this).next('input').focus();
    e.preventDefault();
  }
 });
</script>

answered Dec 2, 2015 at 10:28

Nelson Owalo

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