The Complete React Developer Course (with Hooks and Redux) - Saving and Loading the Count

The video tutorial covers the use of local storage and lifecycle methods to add data persistence to a counter application. It explains how local storage works as a string-based key-value store and the importance of converting strings to numbers using parseInt. The tutorial also addresses handling non-numeric data and using lifecycle methods like componentDidMount and componentDidUpdate to manage state changes. Finally, it demonstrates testing the application to ensure data persistence across sessions.

Why is it important to check if the count has changed before writing to local storage?

What is the significance of using componentDidMount in a React component?

How do you ensure that the count retrieved from local storage is a valid number?

What are the steps to persist data in a React application using local storage?