Inter component communication in React.

In the React ecosystem, building complex applications often involves breaking down the UI into reusable components. However, this modularity raises a crucial question: How do these components effectively communicate and share data?

This article explores the various mechanisms available in React to ensure smooth and efficient communication between your components.

Understanding the Need for Communication
Before diving into the techniques, let's clarify why inter-component communication is essential:

- Data Sharing:

Components often need to access and modify data that exists outside their local state.

- Event Handling:
User interactions (clicks, form submissions, etc.) might trigger changes that need to be communicated to other components.

*- State Management: *

In larger applications, centralized state management can simplify complex data flows.

`JavaScript
function Parent() {
const handleChildClick = (data) => {
// Do something with data
};
return ;
}

function Child({ onClick }) {
return onClick("Data from child")}>Click me;
}`

`JavaScript
// Parent component
function Parent() {
const message = "Hello from parent!";
return ;
}

// Child component
function Child({ message }) {
return

{message}

;
}`

References: https://www.frontendeng.dev/blog/5-tutorial-how-to-communicate-between-two-components-in-react

Comments

[sweet miranda]

Child components can't directly modify their parent's state.
To update data in a parent from a child, use "lifting state up."
The child component defines a function (callback) that the parent passes down as a prop.
When the child needs to update data, it calls the callback function, which the parent receives and uses to update its own state.
Master the controls in House of Hazards and become a master of evasion as you dodge and weave through the dangers.