React Hook “useState” is called in function “app” which is neither a React function component or a custom React Hook function

by

Try to capitalize ‘app’ like

const App = props => {...}

export default App;

In React, components need to be capitalized, and custom hooks need to start with use.

More Related Contents:

  1. Infinite loop in useEffect
  2. How to use `setState` callback on react hooks
  3. How to use callback with useState hook in react [duplicate]
  4. In useEffect, what’s the difference between providing no dependency array and an empty one?
  5. React useState cause double rendering
  6. How to use throttle or debounce with React Hook?
  7. React useReducer async data fetch
  8. Line 0: Parsing error: Cannot read property ‘map’ of undefined
  9. useNavigate() may be used only in the context of a component
  10. Testing React components that fetches data using Hooks
  11. Why React useState with functional update form is needed?
  12. React.useState does not reload state from props
  13. React: useState or useRef?
  14. How do react hooks determine the component that they are for?
  15. Lazy initial state – What it is and how to use it?
  16. useReducer Action dispatched twice
  17. React Hooks – Modified state not reflecting immediately
  18. Attempted import error: ‘useHistory’ is not exported from ‘react-router-dom’
  19. is it possible to React.useState(() => {}) in React?
  20. React Hooks – How do I implement shouldComponentUpdate?
  21. React hook rendering an extra time
  22. Field Array in React using formik
  23. How to test a react component that is dependent on useContext hook?
  24. What is the expected return of `useEffect` used for?
  25. ReactJS – prevState in the new useState React hook?
  26. Put A Warning If Page Refresh in ReactJS
  27. React – Is useState ‘s setter function able to change?
  28. Which react hook to use with firestore onsnapshot?
  29. How do I window removeEventListener using React useEffect
  30. React Hook useEffect has a missing dependency: ‘list’

Leave a Comment