Password validation in login form

1. What is password validation?
2. How do I validate login credentials in HTML?

What is password validation?

It checks that the password entered by the user is same as this confirm password fields. To create a valid password, both the password and confirm password fields value must be matched. First one, we will check for a valid password and then confirm password validation checks.

How do I validate login credentials in HTML?

This can be done by document. getElementById() function, which selects an element by its id. var text1 = document. getElementById("username");