Module 3: Generator Features

The main generator is working. Now we will make SecureGen feel like a complete application rather than a single button that returns a string.

This module is larger because the features are related, but they are still split into small lessons. You will not paste one large block that implements strength, clipboard, storage, theme, modal, and Dice Mode all at once.

What to expect

First, feedback. We will calculate a small strength score from password length and the number of selected character categories, then render that score through the existing badge, label, and six strength bars.

Next, useful actions. We will copy the current password to the clipboard and show the existing toast. Once copying works, we will reuse that function for historical passwords.

Then, persistence. History starts as an in-memory array. After the rendering behavior works, we will connect it to localStorage so a reload does not erase the latest five unique passwords.

Finally, preferences and secondary interactions. Theme state will be remembered, the Tips button will open the prepared modal, and Dice Mode will become a shortcut for generating a surprise password.

The result

At the end of this module, the UI should respond to almost every visible control. You will also have several reusable functions instead of one oversized event handler, which makes the final testing module much easier.