react quiz

What is React?

• A JavaScript library for building user interfaces

• A programming language

• A database management system

What is the purpose of state in React?

• To store and manage data within a component

• To define the layout of a component

• To handle user interactions

What is the difference between props and state in React?

• Props are immutable while state can be changed

• Props are used to pass data from parent to child components while state is used to manage data within a component

• Props and state are the same thing

What is React Router?

• A library for handling client-side routing in React applications

• A database management system

• A library for handling server-side routing in React applications

What is the purpose of the use effect hook in React?

• To perform side effects in a component, such as fetching data from an API

• To manage the state within a component

• To handle user interactions within a component

What is a React hook?

• A way to handle errors in React

• A way to create new components

• A way to reuse stateful logic between components

What is the purpose of the useState hook in React?

• To handle user interactions within a component

• To define the layout of a component

• To manage state within a component

What is the difference between a functional component and a class component in React?

• Functional components are written in ES6 syntax while class components are written in ES5 syntax

• Functional components are simpler and do not have state, while class components can have state and lifecycle methods

• Functional components are deprecated in React