Frontend Mentor - Todo app solution

This is a solution to the Todo app challenge on Frontend Mentor. Frontend Mentor challenges help you improve your coding skills by building realistic projects.

Table of contents

• Overview
  • The challenge
  • Screenshot
  • Links
• My process
  • Built with
  • What I learned
  • Continued development
  • Useful resources
• Author
• Acknowledgements

Overview

The challenge

Users should be able to:

• View the optimal layout for the app depending on their device's screen size ✅
• See hover states for all interactive elements on the page ✅
• Add new todos to the list ✅
• Mark todos as complete ✅
• Delete todos from the list ✅
• Filter by all/active/complete todos ✅
• Clear all completed todos ✅
• Toggle light and dark mode ✅
• Bonus: Drag and drop to reorder items on the list ✅

Screenshot

Links

This app is deployed using Vercel

• Solution URL: https://www.frontendmentor.io/solutions/responsive-todo-app-built-using-react-1EJR5nNYqw
• Live Site URL: https://todo-app-ten-eta.vercel.app/

My process

Built with

• Semantic HTML5 markup
• CSS custom properties
• Flexbox
• CSS Grid
• Mobile-first workflow
• React - JS library

What I learned

In this project, I learnt how to use the useEffect hook with local storage. I also learnt to initialize state from local storage.

const [todos, setTodos] = useState(
  () => JSON.parse(localStorage.getItem("todoItems")) || []
);

useEffect(() => {
  localStorage.setItem("todoItems", JSON.stringify(todos));
}, [todos]);

Continued development

I plan on making this app a fullstack CRUD app by integrating it with firebase.

Useful resources

• scrimba - This is in my opinion the best place to learn web development.
• backgrounImage - This is an amazing article which helped me finally understand how to set inline background image style. I'd recommend it to anyone still learning this concept.
• stack overflow - Whenever I got stuck, I always found some insight here.

Author

• Website - tanuikiprop
• Frontend Mentor - @kiprop-dave

Acknowledgements

I learnt how to drag items in a list from this video