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React Props and Hooks

  • Components are like individual LEGO bricks, where Props are the instructions given to a brick, and Hooks provide special abilities to a brick.
  • Props are used to pass data from a parent component to a child component in React in a one-way street where data flows downwards.
  • Props analogy involves ordering at a restaurant where the customer (Parent Component) gives specific instructions (Props) to the chef (Child Component).
  • Key characteristics of Props include being read-only, data flowing down, and used for configuration and customization of reusable components.
  • Hooks in React, like useState and useEffect, enable functional components to have internal memory and perform actions based on triggers.
  • useState hook provides the component with a 'whiteboard' (state) to manage data with a getter and setter function, allowing re-renders upon state changes.
  • useEffect hook enables components to perform side effects like fetching data or setting timers based on dependencies, controlling when the effect runs.
  • Props work by passing data from parent to child components, while Hooks give components the ability to manage their own data and actions.
  • An example with Props involves passing a 'name' prop to a reusable WelcomeMessage component, and for Hooks, using useState to create a simple counter.
  • Props and Hooks can be used together in React to fetch and store data in a parent component using Hooks while passing parts of that data down to child components as props.

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