Giter VIP home page Giter VIP logo

coffee-use-context-starter-code's Introduction

Context API and useContext

Context Overview

Implementing Context

Creating a Context Object

  • Context is going to hold your global state
import { createContext } from "react"

const AppContext = createContext();

export default AppContext

Creating a Context Provider

const ContextProvider = ({ children }) => {
  let [username, setUsername] = useState("")

  let initialState = {
    username,
    setUsername
  }

  return (
    <AppContext.Provider value={ initialState }> 
      {children}
    </AppContext.Provider>
  );
}

export default ContextProvider;

Using your Provider

const root = ReactDOM.createRoot(document.getElementById('root'));
root.render(
  <React.StrictMode>
    <ContextProvider>
      <App />
    </ContextProvider>
  </React.StrictMode>
);

Using the useContext Hook

const Form = () => {
  const {username, setUsername} = useContext(AppContext)
}

coffee-use-context-starter-code's People

Contributors

thuyanduong avatar

Watchers

 avatar

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    ๐Ÿ–– Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. ๐Ÿ“Š๐Ÿ“ˆ๐ŸŽ‰

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google โค๏ธ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.