- We've covered React JS in some detail. You began by looking at what React JS is and how you can get the project started. We looked at the tooling and development environment. We learned how to create components as functions and how they used to be created as classes. Facebook have a guide to building React JS applications called Thinking in React and we went through how you can start to design an application. Taking a mock and some data, creating a static version, perhaps using props and propTypes, identifying what value should be state and then, identifying where that state should live and adding it to the application. To do that, we covered the state talk, how we use forms and trigger events. But then used inverse data flow in an applications passing functions through props to set state in parent components. We added external data to an application, studying the use of the useEffect hook and asynchronous data calls. To get the skills to make our app single pages, we gained experience with react-router-dom using its components like Router, Switch, Route and NavLink to add in-page navigation. Finally, we looked at an alternative methods for state management and custom hooks. This involved using reducers in context and their associated hooks and leveraging some custom hooks to help implement this to clean up component code and extract this data handling away from them. After all we said throughout the course, React JS is for taking data and displaying it. We hope you've enjoyed the series, but please do keep on practicing your skills. Whether that be using the labs that accompany the course or taking the skills knowledge and understanding you've gained to build your very own apps. Thanks for watching.