formnovalidateSubmit

formnovalidateSubmit is an HTML attribute that can be added to a submit button or input element within a form. Its purpose is to disable the browser's default form validation behavior for that specific submission. When a submit element has the formnovalidateSubmit attribute, the form will be submitted to the server regardless of whether the input fields meet their validation requirements.

This attribute is useful in scenarios where custom validation logic is implemented on the client-side or server-side, or when a user might need to submit incomplete data for specific reasons, such as a "save draft" functionality. Without formnovalidateSubmit, a browser would typically prevent the form submission and display validation error messages if required fields are empty or if input values do not match defined patterns.

To use formnovalidateSubmit, you simply add it as a boolean attribute to the submit button or input element. For example, an HTML snippet might look like:

<button type="submit" formnovalidateSubmit>Submit without validation</button>

or

<input type="submit" value="Save Draft" formnovalidateSubmit>

It's important to note that formnovalidateSubmit only bypasses the browser's built-in HTML5 validation. If server-side validation is in place, the submitted data will still be checked for correctness on the server. Developers should carefully consider the implications of disabling client-side validation and ensure that appropriate security and data integrity measures are handled server-side.