Created
September 22, 2019 08:04
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Basic form handling
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| import { useReducer, useCallback } from 'react'; | |
| export const INITIAL_STATE = {}; | |
| function formReducer(state, action) { | |
| switch (action.type) { | |
| case '__reset__': | |
| return INITIAL_STATE; | |
| case action.type: | |
| return { | |
| ...state, | |
| [action.type]: action.payload, | |
| }; | |
| default: | |
| return state; | |
| } | |
| } | |
| const useForm = () => { | |
| const [values, dispatch] = useReducer(formReducer, INITIAL_STATE); | |
| const onChange = useCallback(evt => { | |
| const { name: type, value: payload } = evt.target; | |
| dispatch({ type, payload }); | |
| }, []); | |
| const resetForm = useCallback(() => { | |
| dispatch({ type: '__reset__' }); | |
| }, []); | |
| return { | |
| values, | |
| onChange, | |
| resetForm, | |
| }; | |
| }; | |
| export default useForm; |
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