Why Am I Getting a 'Submit is not a function' Error in My JavaScript Form?

"Submit is not a function" error in JavaScript

When attempting to submit a form using JavaScript, you may encounter an error stating "Submit is not a function." This error indicates a naming conflict between a form element and the built-in submit() method.

The provided code includes a form with an input field named "submit_value." This element has an event listener that calls the submitAction() function to submit the form. However, the error occurs because an element named "submit" already exists within the form.

Naming an element "submit" overrides the submit() function on the form. To resolve this issue, rename the input field to avoid this naming conflict:

<input onclick="submitAction()">

Alternatively, you can use this approach:

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

This code uses the document.forms[] collection to explicitly access the form by its name and call the submit() method. Both methods effectively resolve the "Submit is not a function" error by avoiding the naming collision.

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