Understanding Props in React: Passing Data Between Components

In React, props (short for "properties") are used to pass data from one component to another, usually from a parent component to a child component.

Simple Explanation:

• Props are like the arguments you pass to a function.

• They allow a parent component to send information to a child component so it can display or use that data.

Think of props like a package sent from the parent to the child. The child opens the package (props) and uses what's inside (the data).

Example:

Let’s say you have a parent component and want to pass a message to a child component.

function ParentComponent() {
  return <ChildComponent message="Hello from Parent!" />;
}

function ChildComponent(props) {
  return <p>{props.message}</p>;
}

In this example:

• The ParentComponent passes the message "Hello from Parent!" to ChildComponent as a prop.

• The ChildComponent receives the prop through its props argument and displays it using {props.message}.

Key Points:

• Props are read-only: The child component cannot change the props it receives; it can only use or display them.

• Props can be anything: You can pass numbers, strings, objects, functions, etc., as props.

• Reusable components: Props allow you to make components more flexible and reusable by passing different data each time.

In Short:

Props in React are like parameters for components. They let you pass data from a parent component to a child component, making the child component more flexible and reusable.