Components are PascalCased

Use React Plugin for ESLint

useState only for dynamic data.

Standards

Organizing Imports

Large props should not be HTML inline

Use TypeScript or PropTypes

Best practices

useEffect

Forward Props in Groups

useContext

Custom Hook : Member Activity Log

useReducer

Examples

React is a JavaScript Library and Framework. Here you will find Standards, Best Practices, and Examples for React.

React

The useContext hook is very effective for passing down state and updating state as well.

export const MemberContext = createContext({})

export const HomePage = () => {
  const initMember = () => {
    // api call
  }
  
  const [member, setMember] = useState<Member>(initMember())
  
  return (
    <MemberContext.Provider value={{member, setMember}}>
      <AppBar  />            
    </MemberContext.Provider>
  )
}
 
export const AppBar = () => {
  const {member, setMember} = useContext(MemberContext)
  
  const {showAvatarForm, setShowAvatarForm} useState(false)
  
  const updateMemberAvatar = () => {
    // api call
  }
  
  const updateAvatar = () => {
    // api call 
    .then((res) => {
      setMember(res.data)
    })
  }

  return (
    <>
      // ui-code 
      <Avatar img={member.avatar} onClick={()=> setShowAvatarForm(true)} />
      {
        showAvatarForm && (
          <Form onSubmit=(() => updateAvatar()) >
            // form code
          </Form>
        )
      }
    <>
  )
} 



React : Examples useContext

React : Examples
useContext