React tracks changing data in the form of state. In this video, learn how to create state data that will be passed to child components as props, and learn how a component must be a class, versus a function, in order to use state.
- [Instructor] In this video we're going … to implement State for the first time … with the help of React's useState hook. … Hooks are a relatively recent and nifty addition to React. … Their function is to let your function components … access features that used to be accessible … only by class components. … State is one of those features, and as we know, … state lets the component track the condition of data … and update itself when those data change. … So all that said, let's give this a whirl. … Looking at how things are right now, … there are a few pieces of data … that we're going to need to track. … Let's go with the current color of the shoe, … the currently selected size, … and all of the sizes that are available. … We're using a hard coded data source right now … for all of these sizes, but theoretically they might change … if we were accessing an API, so we'll treat them … as something that might be changeable at some point. … So current color, current size, all sizes. … Over here in my code, we're going to scroll down …
- Installing React on an existing site
- Thinking about a design in terms of components
- Creating fully-featured function components using Hooks
- Storing and retrieving data from an external RESTful API
- Employing third-party components for CSS animation
- Using conditional rendering
Skill Level Intermediate
Essentials of CSS for React Developerswith Eric Greene53m 31s Beginner
Using the exercise files1m 2s
1. Introducing React
2. First Project: Customizer
3. Second Project: Directory Browser
4. Third Project: Status Updater
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