In the previous section, we saw the usage of state for the regions; let's delve a bit deeper into that. The concept of state is very similar to props, but with crucial differences: props are assigned from the outside and are read-only, and state is handled privately, and read-write. If a component needs to keep some information, which it can use to render itself, then using state is the solution.
- Title Page
- Copyright and Credits
- Dedication
- www.PacktPub.com
- Contributors
- Preface
- Working with JavaScript Development Tools
- Introduction
- Installing Visual Studio Code for development
- Extending Visual Studio Code
- Adding Fira Code font for better editing
- Adding npm for package management
- Doing version control with Git
- Formatting your source code with Prettier
- Documenting your code with JSDoc
- Adding code quality checks with ESLint
- Adding Flow for data types checks
- Using Modern JavaScript Features
- Developing with Node
- Introduction
- Checking Node's setup
- Working with modules
- Using Flow with Node, directly
- Using Flow with Node through preprocessing
- Running your Node code with Nodemon
- Using promises instead of error first callbacks
- Working with streams to process requests
- Compressing files with streams
- Working with a database
- Executing external processes with exec()
- Using spawn() to run a command, and communicating with it
- Using fork() to run Node commands
- Implementing RESTful Services with Node
- Introduction
- Developing a server with Express
- Adding middleware
- Getting request parameters
- Serving static files
- Adding routes
- Implementing secure connections
- Adding security safeguards with Helmet
- Implementing CORS
- Adding authentication with JWT
- Tying it all together – building a REST server
- Testing and Debugging Your Server
- Introduction
- Adding logging with Winston
- Adding HTTP logging with Morgan
- Configuring your server for different environments
- Unit testing your code
- Measuring your test coverage
- Debugging your code
- Testing simple services from the command line
- Testing more complex sequences of calls with Postman
- Documenting and testing your REST API with Swagger
- Developing with React
- Enhancing Your Application
- Introduction
- Adding SASS for separate styling
- Creating StyledComponents for inline styling
- Making your application responsive to screen sizes
- Making your application adaptive for enhanced usability
- Making a global application with internationalization and localization
- Setting up for accessibility (a11y)
- Expanding Your Application
- Debugging Your Application
- Testing Your Application
- Creating Mobile Apps with React Native
- Testing and Debugging Your Mobile App
- Creating a Desktop Application with Electron
- Other Books You May Enjoy
Handling state
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