When working with React, the data flow is one-way from parent component to its children. This concept is known as unidirectional data flow or one-way data binding. If you want to achieve a specific outcome based on your components' structure, you may need to utilize the Context API or tools like redux to manage your data in one centralized location (or by lifting states up). However, there is a workaround that allows you to avoid restructuring your project:
If your state resides in the index or home page, you can create a function within this component that receives the fetched data from the Location component as a parameter and updates the state accordingly. Make sure to pass this function through props to the Layout component so it can further pass it down to Header, and then to Location (a process known as prop drilling). Here's an example:
const Home = () => {
const [data, setData] = useState([]);
const handleData = (data) => {
setData(data);
}
return (
<Layout handleData={handleData}>
The rest of your components...
</Layout>
)
}
Next, make sure to pass the function in this sequence: Layout - Header - Location.
In the Location component:
const Location = ({ handleData }) => {
const handleClick = () => {
// Fetch your data on click event and pass it as a parameter to the handleData function
handleData(fetchedData);
}
// The remaining part of your component...
}
I hope this explanation proves helpful for you.