Vue Js Password validation regex:Vue.js is a JavaScript framework for building user interfaces, and password validation regex is a regular expression used to check if a password meets certain criteria. In Vue.js, password validation regex can be implemented by defining a regular expression pattern and using it to validate user input. The pattern can include requirements such as minimum length, uppercase and lowercase letters, numbers, and special characters. By using password validation regex in Vue.js, developers can ensure that users create strong and secure passwords that meet specific requirements, improving the overall security of their application.

What is the regular expression in Vue.js for validating passwords that must contain at least one lowercase letter, one uppercase letter, one digit, one special character, and be at least 8 characters long?

The regular expression used in the Vue.js code for password validation is:

/^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]{8,}$/

This regular expression uses positive lookahead assertions to ensure that the password contains at least one lowercase letter ((?=.*[a-z])), one uppercase letter ((?=.*[A-Z])), one digit ((?=.*\d)), and one special character ((?=.*[@$!%*?&])). The [] square brackets contain a list of allowed special characters.

The {8,} quantifier at the end ensures that the password is at least 8 characters long.

So, this regular expression will match any string that contains at least one lowercase letter, one uppercase letter, one digit, one special character, and is at least 8 characters long.

The test() method is used to test the input string against the regular expression, and the showValidationMessage and validationMessage properties are used to display a validation message to the user if the password is invalid

Vue Js Password validation regex Example

<script type="module" >
    const app = new Vue({
    el: "#app",
    data() {
        return {
            password: '',
            showValidationMessage: false,
            validationMessage: '',
            showPassword: false

        };
    },
    methods: {
        validatePassword() {
            const passwordRegex = /^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]{8,}$/;
            if (!this.password) {
                this.showValidationMessage = false;
                return;
            }
            if (passwordRegex.test(this.password)) {
                this.showValidationMessage = false;
            } else {
                this.showValidationMessage = true;
                this.validationMessage = 'Password must contain at least one lowercase letter, one uppercase letter, one digit, one special character, and be at least 8 characters long.';
            }
        },

    }
});
</script>

Output of Vue Js Password validation regex

What is the regular expression for Vue JS password validation that requires a minimum of eight characters with at least one letter and one number?

The Given below regular expression is a valid one for Vue JS password validation that requires a minimum of eight characters with at least one letter and one number.

Vue Js Password Validation regex: Minimum eight characters, at least one letter and one number

methods: {
    validatePassword() {
        const passwordRegex = /^(?=.*[A-Za-z])(?=.*\d)[A-Za-z\d]{8,}$/
        if (!this.password) {
            this.showValidationMessage = false;
            return;
        }
        if (passwordRegex.test(this.password)) {
            this.showValidationMessage = false;
        } else {
            this.showValidationMessage = true;
            this.validationMessage = 'Password must contain  at least one letter and one digit, and is at least 8 characters long';
        }
    },

}

Output of Vue Js Password Validation Regex

Vue Js Password Validation Regex:Minimum eight characters, at least one letter, one number and one special character:

const passwordRegex = /^(?=.*[A-Za-z])(?=.*\d)(?=.*[@$!%*#?&])[A-Za-z\d@$!%*#?&]{8,}$/

Vue Js Password Validation Regex: Minimum eight and maximum 10 characters, at least one uppercase letter, one lowercase letter, one number and one special character:

const passwordRegex = /(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]{8,10}$/