All the Data Annotation attributes like Required, Range are derived from the ValidationAttribute class that is an abstract class. username and password, As user clicks on login button, JavaScript validation function comes into act. In this example i used some validation rules that listed bellow that need to apply. Suppose, we have this dummy array that contains the login info of two of many users of a social networking platform −. In this guide we will walk through creating a custom react hook to validate passwords. We will use password and confirm password validation in angular 6, angular 7, angular 8 and angular 9 application. This may include: Validating the format of fields such as email address, phone number, zip code, name, password. HOME C C++ DS Java AWT Collection Jdbc JSP Servlet SQL PL/SQL C-Code C++-Code Java-Code Project Word Excel. 2)min: for limit to enter minimum character.