Password Check Directive In Angularjs

Password Check Directive In AngularJS

Creating a password check directive in AngularJS can be a handy feature to enhance your form validation process and provide a seamless user experience. In this article, we will walk through the steps to implement a password check directive in AngularJS to match and confirm if passwords entered in two different fields are identical.

Firstly, let's create a new directive in AngularJS called 'passwordMatch' that will be responsible for comparing the values of two password input fields. This directive will watch for changes in both fields and display an error if the passwords do not match. Here's how you can define the directive:

angular.module('myApp').directive('passwordMatch', function () {
    return {
        require: 'ngModel',
        link: function (scope, elem, attrs, ctrl) {
            var firstPassword = '#' + attrs.passwordMatch;

            elem.add(firstPassword).on('keyup', function () {
                scope.$apply(function () {
                    var value = elem.val() === $(firstPassword).val();
                    ctrl.$setValidity('passwordMatch', value);
                });
            });
        }
    };
});

In the code snippet above, the 'passwordMatch' directive is set up with a function that compares the values of the two password input fields with the 'ngModel' controller to check for a match. The 'ctrl.$setValidity' function updates the validation status of the form field based on the equality check result.

Next, let's apply the 'passwordMatch' directive to the password fields in our form. Here's an example of how you can use the directive in your HTML markup:

<span>Passwords do not match!</span>

In the HTML snippet above, the 'password-match' attribute is added to the 'confirmPassword' input field, specifying the reference to the 'password' field to compare the values.
The 'ng-show' directive is used to display an error message if the passwords do not match based on the validation status set by the 'passwordMatch' directive.

By following these steps and incorporating the 'passwordMatch' directive in your AngularJS application, you can easily implement a password check functionality to ensure that users enter matching passwords during the signup or password update process. This will help improve user experience and ensure data integrity in your application.

We hope this article has been helpful in guiding you through the process of creating a password check directive in AngularJS. Feel free to customize the directive further to suit your specific requirements and enhance the security of your application. Happy coding!