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Introduction
Generating a strong, random password is a critical step in protecting user accounts and application data. A secure password should be long enough and include a mix of lowercase letters, uppercase letters, numbers, and special characters to make it difficult to guess or crack via brute-force attacks. -
The “Classic” Math.random() Approach
The simplest way to generate a random password is to rely on Math.random(). However, it isn’t cryptographically secure and isn’t recommended for sensitive applications:
Pros
Very simple and requires no extra libraries.
Cons
Math.random() is not cryptographically secure.
Predictable in some environments.
- Customizing Your Password Generator
You can easily adapt these examples to enforce specific requirements:
Password length: Pass a dynamic length parameter.
Character sets: Include or exclude lowercase, uppercase, digits, or symbols.
Mandatory inclusion: Guarantee at least one character from each category.
Example: Ensuring at Least One Uppercase and One Symbol