Book Image

React Key Concepts

By : Maximilian Schwarzmüller
Book Image

React Key Concepts

By: Maximilian Schwarzmüller

Overview of this book

As the most popular JavaScript library for building modern, interactive user interfaces, React is an in-demand framework that’ll bring real value to your career or next project. But like any technology, learning React can be tricky, and finding the right teacher can make things a whole lot easier. Maximilian Schwarzmüller is a bestselling instructor who has helped over two million students worldwide learn how to code, and his latest React video course (React — The Complete Guide) has over six hundred thousand students on Udemy. Max has written this quick-start reference to help you get to grips with the world of React programming. Simple explanations, relevant examples, and a clear, concise approach make this fast-paced guide the ideal resource for busy developers. This book distills the core concepts of React and draws together its key features with neat summaries, thus perfectly complementing other in-depth teaching resources. So, whether you've just finished Max’s React video course and are looking for a handy reference tool, or you've been using a variety of other learning materials and now need a single study guide to bring everything together, this is the ideal companion to support you through your next React projects. Plus, it's fully up to date for React 18, so you can be sure you’re ready to go with the latest version.
Table of Contents (16 chapters)

Apply What You Learned

Apply your knowledge about routing, combined with data manipulation, to the following activity.

Activity 13.1: A To-Dos App

In this activity, your task is to create a basic to-do list web app that allows users to manage their daily to-do tasks. The finished page must allow users to add to-do items, update to-do items, delete to-do items and view a list of to-do items.

The following paths must be supported:

  • /: The main page, responsible for loading and displaying a list of to-do items
  • /new: A page, opened as a modal above the main page, allowing users to add a new to-do item
  • /:id: A page, also opened as a modal above the main page, allowing users to update or delete a selected to-do item

If no to-do items exist yet, a fitting info message should be shown on the / page. If users try to visit /:id with an invalid to-do ID, an error modal should be displayed.


For this activity, there is no backend API you could use. Instead...