Why Does My JavaScript Code Throw a '.submit is not a function' Error When Submitting a Form?

"submit is not a function" Error in JavaScript

This issue arises when attempting to submit a form using JavaScript, resulting in an error message indicating ".submit is not a function."

The provided code employs a button with an onClick event listener named submitAction(), which calls the submit() method on the form element, document.frmProduct. However, this method fails, leading to the aforementioned error.

A common cause for this error is naming the submit button "submit." This action overrides the submit() function on the form. Renaming the button to something different, such as btnSubmit, will resolve the issue.

Alternatively, you can directly reference the form object using the name property, as demonstrated in the following corrected code:

<input onclick="submitAction()">

<script type="text/javascript">
  function submitAction() {
    document.forms["frmProduct"].submit();
  }
</script>

By correcting the button's name or referencing the form explicitly, the submit() method can now be successfully executed in JavaScript.

The above is the detailed content of Why Does My JavaScript Code Throw a '.submit is not a function' Error When Submitting a Form?. For more information, please follow other related articles on the PHP Chinese website!