Require two words separated by space in input

Question

I have a field in which I would like to force the user to enter two words separated by a space. If only one word is entered, it must not let the user submit the form.

<input type="text" name="nom"placeholder="Prenom Nom" required>

Answer 1

You could add a pattern

<input type="text" placeholder="Prenom Nom" required="required" pattern="^\S+\s\S+$" name="nom">

that matches any character group (but not space), a space, and any character group (but not space)