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React.js Basics

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Questions and Answers

What is React?

A database management system

A front-end JavaScript library for building user interfaces based on components (correct)

A mobile application development framework

A back-end programming language for server-side applications

What is a key advantage of React?

It provides built-in routing functionality

It enables seamless integration with PHP

It automatically optimizes database queries

It only rerenders parts of the page that have changed (correct)

What is JSX in the context of React?

A syntax extension for JavaScript to write HTML-like code in React (correct)

A state management system for React components

A tool for server-side rendering in React applications

A built-in data visualization library in React

How does React handle data changes and updates?

React updates and renders components when data changes Signup and view all the answers

What are the entities called in React code?

Components Signup and view all the answers

What is the key advantage of React?

It only rerenders parts of the page that have changed Signup and view all the answers

What is the primary role of React in application development?

Rendering user interfaces based on components Signup and view all the answers

What is the declarative programming paradigm that React adheres to?

Designing views for each state of an application Signup and view all the answers

What are the entities called in React code?

Components Signup and view all the answers

Which type of applications can be developed using React?

Single-page, mobile, or server-rendered applications Signup and view all the answers

Study Notes

Introduction to React

React is a JavaScript library for building user interfaces.

Key Advantages of React

A key advantage of React is its ability to efficiently update and render components when data changes.

JSX in React

JSX is a syntax extension for JavaScript that allows developers to write HTML-like code in their JavaScript files, making it easier to create React elements.

Data Handling and Updates in React

React handles data changes and updates by re-rendering components when the state or props change.

Entities in React Code

In React code, entities are referred to as components.

Declarative Programming Paradigm

React adheres to the declarative programming paradigm, which focuses on what the program should accomplish rather than how it should accomplish it.

Primary Role of React

The primary role of React is to make building reusable UI components easy and efficient, allowing developers to focus on building complex and scalable applications.

Type of Applications Developed with React

React can be used to develop a wide range of applications, including single-page applications, mobile applications, and desktop applications.

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Description

Test your knowledge of the basics of React.js, a popular front-end JavaScript library for building user interfaces based on components. Learn about its features, applications, and how it integrates with frameworks like Next.js.