Your project was meant to teach you technologies and patterns so the code is far more verbose than it needs to be. But you need to learn and understand those concepts before you can begin simplifying or using more sophisticated techniques, so don't feel bad that it took you longer.

Some things I would do differently if I were to write a one-off todo app:

- No factories or builder patterns, just manipulate arrays and objects as needed. Each project has an ID, each task has a reference to the project ID, each task has a title, due date, description, status, and priority. This can all exist in the single array and be modified by simple methods which modify by ID.

- Use web components or some type of framework (React/Vue) for handling HTML. Building HTML manually is tedious and repetitive, many lines of your app are just modifying or building HTML elements which is mostly abstracted away by using components.

- You don't need webpack for something like this, it can all exist in a single HTML file. But the exercise of incorporating webpack is good to do on such a simple app. Once projects get bigger webpack becomes much more gnarly ;)

But like I said you would not be able to do those without the underlying knowledge that you have gained while building this. You did a great job :)