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Is there any function similar to mapStateToProps so that we can connect Redux state to the functional component in React?
Is passing the state as props from parent component the only solution?
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You can definitely use mapStateToProps with a functional component, the same way you would with a class component.
As the first argument passed in to connect , mapStateToProps is used for selecting the part of the data from the store that the connected component needs. It's frequently referred to as just mapState for short. It is called every time the store state changes.
Yes. You can skip the first parameter by passing undefined or null . Your component will not subscribe to the store, and will still receive the dispatch props defined by mapDispatchToProps .
In class components mapStateToProps works the same as functional components, I feel there are only differences in some syntax or calling approaches.
You can definitely use mapStateToProps with a functional component, the same way you would with a class component.
function MyComponent({ propOne }) { return <p>{propOne}</p> } function mapStateToProps(state) { return { propOne: state.propOne }; } export default connect(mapStateToProps)(MyComponent); react-redux now has a useSelector method. That's a much cleaner approach for functional components that employ hooks. See: https://react-redux.js.org/next/api/hooks#useselector
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