Solved: password regex

The main problem with password regex is that it can be easily hacked. A hacker could use a regex to search for passwords and then use those passwords to access accounts.

var password = "abc123";
var regex = /^(?=.*d)(?=.*[a-z])(?=.*[A-Z]).{6,20}$/;
if(regex.test(password)) {
  console.log("Password is valid");
} else {
  console.log("Password is invalid");

The first line creates a variable called “password” and assigns the value “abc123” to it. The second line creates a variable called “regex” and assigns a regular expression to it. This regular expression checks if the password contains at least one number, one lowercase letter, and one uppercase letter. The third line checks if the password entered by the user (stored in the “password” variable) matches the regular expression stored in the “regex” variable. If it does, then the message “Password is valid” is displayed on the console. If it doesn’t, then the message “Password is invalid” is displayed on the console.


Regex is a powerful text processing library for JavaScript. It allows you to match patterns in text, and can be used for a variety of purposes, such as validation or search.

JavaScript and passwords

One of the most common ways to store passwords in JavaScript is to use a password manager. A password manager stores passwords in a secure way and can help you remember multiple passwords.

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