JAVASCRIPT
Enforce Strong Passwords with Regex Pattern
Create a robust JavaScript regex pattern to validate strong passwords, ensuring they meet criteria like minimum length, presence of uppercase, lowercase, numbers, and special characters.
const passwordRegex = new RegExp(
/^(?=.*[a-z])(?=.*[A-Z])(?=.*\\d)(?=.*[!@#$%^&*()_+])[A-Za-z\\d!@#$%^&*()_+]{8,}$/
);
function isStrongPassword(password) {
return passwordRegex.test(password);
}
// Example usage:
// console.log(isStrongPassword("Password123!")); // true
// console.log(isStrongPassword("password123")); // false (no uppercase, no special char)
How it works: This JavaScript regex ensures a strong password policy. It utilizes positive lookaheads (`(?=...)`) to check for the presence of at least one lowercase letter, one uppercase letter, one digit, and one specified special character, all while requiring a minimum total length of 8 characters. This helps enhance user account security.