Client-Side Verification Django

I'm new to Django and I made a form that extends UserCreationForm and I want to verify the inputs on the client-side. How can I do that? When I validate password1 it works perfectly but for some reason I can't check if the fields are missing. Thanks in advance.

class UserRegisterForm(UserCreationForm):
    email = forms.EmailField()

    class Meta:
        model = User 
        fields = ['username', 'email', 'password1', 'password2']


    def validate(self,password):

        return self.short_enough(password) and self.has_lowercase(password) and self.has_uppercase(password) and self.has_numeric(password) and self.has_special(password)


    def short_enough(self,pw):
         return len(pw) == 8

    def has_lowercase(self,pw):
        'Password must contain a lowercase letter'
        return len(set(string.ascii_lowercase).intersection(pw)) > 0

    def has_uppercase(self,pw):
        'Password must contain an uppercase letter'
        return len(set(string.ascii_uppercase).intersection(pw)) > 0

    def has_numeric(self,pw):
        'Password must contain a digit'
        return len(set(string.digits).intersection(pw)) > 0

    def has_special(self,pw):
        'Password must contain a special character'
        return len(set(string.punctuation).intersection(pw)) > 0


    def clean(self):
        
        cleaned_data = super(UserRegisterForm, self).clean()

        username = cleaned_data.get('username')
        email = cleaned_data.get('email')
        password1 = cleaned_data.get('password1')
        password2 = cleaned_data.get("password2")

        if username == None or email == None or password1 == None or password2 == None:      
              raise forms.ValidationError("Some fields are missing" )
              

        if not self.validate(password1):
            raise forms.ValidationError("Password must be 8 characters(1 upper, 1 lower, 1 number, 1 special character)" )
        else:
            return cleaned_data