JavaScript

Question

how to interact with a form using JavaScript?

Answer 1

You can put "required" on your input to prevent form submission if the field is empty.

<input type="text" name="myinput" required>

Otherwise, if you want to personalize your input validation, see here:
https://www.w3schools.com/js/js_validation.asp

Answer 2

What do you want to do with the form?

Answer 3

I just want , if for example a user doesn't insert something in a field , show him a alert like "the field is empty".

Answer 4

an alert message like " the name field is empty"

Answer 5

thanks brother!