React Development Skill Assessment

Written by Coursera • Updated on

Test your React skills with this quick assessment. Answer 10 multiple-choice questions to get your score, then check the scoring guide to find your level and recommended learning path.

React Programming Quiz

React is a popular library among web developers thanks to its open-source, elementary design. It is sometimes referred to as React.js or ReactJS. A React developer uses their programming skills to create JavaScript-based applications for web or mobile environments. They typically specialize in front-end development, such as building user interfaces (UI). If you're interested in web development, take the quiz below to better understand your React skill level and explore courses designed to take you to the next level.

Test Structure

  • 10 multiple-choice questions

  • Takes approximately 5-10 minutes

  • Immediate results with course recommendations

Answer the following skill-based questions and click Submit to calculate your score. Use your score to find recommendations that align with your current skill level and explore courses that interest you.

1. What is the difference between state and props?

No difference
Props are read-only and passed from parent, state can be changed internally
State is for styling only
Props are faster than state

2. What is the purpose of the useEffect hook?

To style components
To perform side effects in function components
To create new components
To handle events

3. What's the correct way to update state in React?

const [count, setCount] = useState(0);
  
count = count + 1
setCount(prevCount => prevCount + 1)
count += 1
useEffect(() => count + 1)

4. What is the Virtual DOM?

A browser feature
A lightweight copy of the DOM that React uses for performance optimization
A database
A styling framework

5. What is a controlled component?

A component with error boundaries
A form element whose value is controlled by React state
A component without props
A cached component

6. What is the purpose of React.memo?

To create memoized values
To prevent unnecessary re-renders of functional components
To store data
To handle memory leaks

7. What is the Context API used for?

API calls
Passing data through the component tree without props drilling
Component styling
Error handling

8. Which hook would you use to memoize an expensive calculation?

useEffect
useMemo
useCallback
useState

9. What is a custom hook?

A built-in React hook
A function that starts with 'use' and may call other hooks
A JavaScript function
A component feature

10. What is the purpose of React Suspense?

To handle errors
To handle loading states and lazy loading
To suspend components
To optimize performance

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Scoring Guide & Course Recommendations

Your quiz score above aligns with a general proficiency level of beginner, intermediate, or advanced. Match your score to the ranges below and explore course recommendations below to expand your skill set.

0-30 Correct: Beginner Level

  • Skill Level: New to React

  • Recommended Coursera Courses:

    1. React Basics by Meta

      • React fundamentals

      • Components and props

      • State and events

40-70 Correct: Intermediate Level

  • Skill Level: Familiar with basics, ready for advanced concepts

  • Recommended Coursera Courses:

    1. Advanced React by Meta

      • Hooks in depth

      • Context API

      • Performance optimization

    2. Developing Front-End Apps with React by IBM

      • Development of interactive user interfaces

      • Application of advanced React features

80-100 Correct: Advanced Level

Skills Covered by Level

As you progress in your career, you'll develop more advanced skills. Below are some examples of common skills at each level.

Beginner Level

  • JSX syntax

  • Components and props

  • State and lifecycle

  • Event handling

  • Basic hooks

  • Basic routing

Intermediate Level

  • Advanced hooks

  • Context API

  • Performance optimization

  • State management

  • API integration

  • Forms and validation

Advanced Level

  • Design patterns

  • Testing strategies

  • Server-side rendering

  • Advanced state management

  • Performance optimization

  • Micro-frontends

Key Technologies to Learn

If you're learning React for your web development career, adding a solid understanding of the following technologies to your skill set could also be beneficial.

  • React

  • Redux/Context API

  • React Router

  • Next.js

  • Testing (Jest, React Testing Library)

  • TypeScript

Career Paths

Your web design or development career path will be unique to your strengths and interests. Below are some common roles at different skill levels. Explore our web development career roadmap to better understand the roles available and the skills required to advance from beginner to advanced.

Grow your career with Coursera

Ready to learn more? Consider the Meta React Native Specialization. Learn in-demand skills for developing reliable, scalable, and user-friendly mobile apps for multiple operating systems, such as iOS and Android. You'll become an expert in React Native, React, JavaScript, GitHub repositories, and version control.

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This content has been made available for informational purposes only. Learners are advised to conduct additional research to ensure that courses and other credentials pursued meet their personal, professional, and financial goals.

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