# Forms and Validations

Before submitting data to the server, it is important to ensure all required form controls are filled out, in the correct format. This is called client-side form validation, and helps ensure data submitted matches the requirements set forth in the various form controls.

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<BadgeLink badgeText='Read' colorScheme='yellow' href='https://developer.mozilla.org/en-US/docs/Learn/Forms/Form_validation'>MDN Web Docs: Client-side form validation</BadgeLink>
