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

Here is an example of custom Hook that logs Member Activity.

export interface NewActivity {
  title: string
  description?: string
}

export interface Activity extends NewActivity {
  id: number
  createdAt: Date
}

const useMemberActivities = (): [activities: Activity[], (a: NewActivity) => void] => {
  const [activities, setActivity] = useState<Activity[]>([])
  const [id, setId] = useState<number>(0)

  const {enqueueSnackbar} = useSnackbar()

  const addActivity = (newActivity: NewActivity) => {
    setId(id + 1)

    const activity = {...newActivity, id, createdAt: new Date()}

    setActivity([activity, ...activities])
  }

  useEffect(() => {
    if (activities.length > 0) {
      const newActivity = activities[0]
      enqueueSnackbar(newActivity.title, {variant: 'success'})
    }
  }, [activities, enqueueSnackbar])

  return [activities, (a: NewActivity) => addActivity(a)]
}
export default useMemberActivity


const Settings = () => {

  const [activities, setActivities] = useMemberActivity()
  
  const handleUpdateMode = (mode: string) => {
    updateTheme({mode: mode.toLowerCase()})
    setActivities({title: `${mode} Mode`, description: 'Theme Mode Changed'})   
  }
}

React : Examples Custom Hook : Member Activity Log

React : Examples
Custom Hook : Member Activity Log