Check

Empty field. Error message or just highlight?

Empty field. Error message or just highlight?
  1. How to check if input value is empty JavaScript?
  2. How do you display error message below input field in HTML?

How to check if input value is empty JavaScript?

Use the condition with “” and NULL to check if value is empty.

How do you display error message below input field in HTML?

To customize the appearance and text of these messages, you must use JavaScript; there is no way to do it using just HTML and CSS. HTML5 provides the constraint validation API to check and customize the state of a form element. var email = document. getElementById("mail"); email.

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