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ctx - custom hook example
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| import React from 'react'; | |
| const SpicyCtx = React.createContext(null); | |
| // custom hook | |
| export const useSpicyState = () => { | |
| const ctx = React.useContext(SpicyCtx); | |
| if (!ctx) { | |
| throw new Error("useSpicyState must be used within the SpicyProvider") | |
| } | |
| return ctx; | |
| }; | |
| // in another file | |
| import { useSpicyState } from 'a-special-place'; | |
| const BlandFood = () => { | |
| const spice = useSpicyState() | |
| return <>{spice}</>; | |
| }; | |
| const App = () => ( | |
| <SpicyCtx.Provider value="scary"> | |
| <div> | |
| <BlandFood /> | |
| </div> | |
| </SpicyCtx.Provider> | |
| ); |
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