I am trying to understand how to share hooks state across components. But it doesn't seem to be sharing. Am I doing something wrong here?
Home.js
export default function Home() {
const [search, setSearch]= useState('');
return (
<div>
<Input search={search} handleChange={setSearch} />
<Products search={search} handleChange={setSearch} />
</div>
)
}
Input.js
export default function Input({search, setSearch}) {
const handleChange = (e) => {
setSearch(e.target.value)
}
return (
<div className='App'>
<input
placeholder='search...'
value={search}
onChange={handleChange}
/>
{search}
</div>
)
}
Live Example:
const { useState } = React;
/*export default*/ function Home() {
const [search, setSearch]= useState('');
return (
<div>
<Input search={search} handleChange={setSearch} />
<Products search={search} handleChange={setSearch} />
</div>
)
}
/*export default*/ function Input({search, setSearch}) {
const handleChange = (e) => {
setSearch(e.target.value)
}
return (
<div className='App'>
<input
placeholder='search...'
value={search}
onChange={handleChange}
/>
{search}
</div>
)
}
const Products = ({search}) => {
return <div>Product: {search}</div>;
};
ReactDOM.createRoot(document.getElementById("root"))
.render(<Home />);
<div id="root"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/18.0.0/umd/react.development.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/18.0.0/umd/react-dom.development.js"></script>
CodePudding user response:
You pass handleSearch
as prop in your Home
component but Input
is expecting setSearch
, so just change this line in your Home
return (
<div>
<Input search={search} setSearch={setSearch} /> // change here
<Products search={search} handleChange={setSearch} />
</div>
)