React.js Basics
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React.js Basics

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.

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@SupportiveLemur

Questions and Answers

What is React?

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

What is a key advantage of React?

It only rerenders parts of the page that have changed

What is JSX in the context of React?

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

How does React handle data changes and updates?

<p>React updates and renders components when data changes</p> Signup and view all the answers

What are the entities called in React code?

<p>Components</p> Signup and view all the answers

What is the key advantage of React?

<p>It only rerenders parts of the page that have changed</p> Signup and view all the answers

What is the primary role of React in application development?

<p>Rendering user interfaces based on components</p> Signup and view all the answers

What is the declarative programming paradigm that React adheres to?

<p>Designing views for each state of an application</p> Signup and view all the answers

What are the entities called in React code?

<p>Components</p> Signup and view all the answers

Which type of applications can be developed using React?

<p>Single-page, mobile, or server-rendered applications</p> 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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