Vue Js Password Strength Meter | Indicator

Vue Password Strength Meter:Vue Password Strength Meter is a customizable password strength meter component for Vue.js applications. It allows developers to integrate a password strength meter into their forms to provide real-time feedback on the strength of the user’s password. The component calculates the strength of the password based on various criteria such as length, complexity, and the presence of uppercase letters, lowercase letters, numbers, and special characters. The strength of the password is then displayed to the user using different colors and indicators. The component is highly configurable, allowing developers to customize the criteria for password strength calculation and the UI of the password strength meter.

How can a password strength meter be implemented using Vue.js?

The below code demonstrates how to implement a password strength meter using Vue.js. It uses a Vue instance with two data properties: password and passwordStrength. The method checkPasswordStrength is triggered by the keyup event on the password input, which checks the strength of the entered password and updates the passwordStrength data property accordingly.

The strength of the password is determined by its length and complexity. If the password is less than 8 characters long, it is considered weak. If it contains at least one lowercase letter, one uppercase letter, one number, and one special character, it is considered strong. If it does not meet either of these criteria, it is considered medium.

The password strength is displayed using a div element with a class of “password-strength”. The class of this div is dynamically updated based on the value of the passwordStrength data property using Vue.js binding syntax. The password strength text is displayed within this div.

Overall, this code provides a simple and effective way to implement a password strength meter using Vue.js.

Vue Password Strength Meter Example

  <div id="app">
        <label for="password">Enter password:</label>
        <input type="password" id="password" v-model="password" @keyup="checkPasswordStrength" placeholder="Password">
        <div class="password-strength"
            :class="{'weak': passwordStrength === 'Weak', 'medium': passwordStrength === 'Medium', 'strong': passwordStrength === 'Strong'}">
            {{ passwordStrength }}
        </div>
    </div>
   <script>
        var app = new Vue({
            el: '#app',
            data: {
                password: '',
                passwordStrength: '',
            },
            methods: {
                checkPasswordStrength: function () {
                    var password = this.password;

                    if (password.length < 8) {
                        this.passwordStrength = 'Weak';
                    } else if (password.match(/[a-z]/) && password.match(/[A-Z]/) && password.match(/[0-9]/) && password.match(/.[!,%,&,@,#,$,^,*,?,_,~]/)) {
                        this.passwordStrength = 'Strong';
                    } else {
                        this.passwordStrength = 'Medium';
                    }
                }
            }
        });
    </script>