React Interview

A library for handling HTTP requests

A library for building user interfaces

A database management system

A CSS preprocessor

Reusable UI elements

The logic part of React

Database structures

React's core library code

JavaScript extension

HTML preprocessor

XML-like syntax to write React components

JavaScript compiler

Functional components are stateful

Functional components are stateless

Class components are only for styling

Class components can't manage state

Through props

Through events

Through context

Directly by DOM manipulation

this.props.name

props.name

{props}.name

props().name

To manage component lifecycle

To manage component state in functional components

To bind event handlers

To handle API requests

useState

useEffect

useContext

useReducer

Handles event listeners

Fetches data and runs side effects

Manages state

Handles component updates

this.setState

useState()

setEffect()

setReducer()