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React prop drilling
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| import React, { useState } from 'react'; | |
| const ReactPropDrilling = () => { | |
| const [counter, setCounter] = useState(0); | |
| return ( | |
| <div> | |
| Main app container: | |
| <CounterDisplay counter={counter} /> | |
| <div> | |
| {/* eslint-disable-next-line jsx-a11y/control-has-associated-label,react/button-has-type */} | |
| Increment - | |
| <button onClick={() => setCounter(oldValue => oldValue + 1)} /> | |
| </div> | |
| </div> | |
| ); | |
| }; | |
| const CounterDisplay = ({ counter }) => { | |
| return ( | |
| <div> | |
| Actually I am quite complicated and have several levels deep before I show | |
| the counter value | |
| <SecondCounterDisplay counter={counter} /> | |
| </div> | |
| ); | |
| }; | |
| const SecondCounterDisplay = ({ counter }) => { | |
| return ( | |
| <div> | |
| Nope, not quite yet, one more level... | |
| <ThirdCounterDisplay counter={counter} /> | |
| </div> | |
| ); | |
| }; | |
| const ThirdCounterDisplay = ({ counter }) => { | |
| return <div>OK, now I can display the counter value = {counter}</div>; | |
| }; | |
| export default ReactPropDrilling; |
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