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Hendrik Swanepoel

React is known for its excellent performance characteristics, but you still need to be aware of common performance pitfalls and how to deal with it. This course will help you to get your React apps to be fast and efficient.

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React is known for its excellent performance characteristics, but you still need to be aware of common performance pitfalls and how to deal with it. This course will help you to get your React apps to be fast and efficient.

React app performance can suffer due to components rendering too often. It's also common for React app bundles to end up too large and take too long to download. In this course, Optimize Performance for React, you’ll learn how to identify and address common React performance issues. First, you’ll explore how to analyze and fix wasted renders on both class and functional components. Next, you’ll see how to cache expensive operation results. Finally, you’ll learn how to reduce your app bundle size using production builds and lazy component loading. When you’re finished with this course, you’ll have the skills and knowledge of React performance needed to ensure that your React apps download and execute as fast as possible.

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What's inside

Syllabus

Course Overview
Getting Started
Fixing Wasted Rendering Issues
Fixing Large Bundles and Expensive Operation Issues
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Good to know

Know what's good
, what to watch for
, and possible dealbreakers
Focuses on React's performance characteristics, a critical aspect for building efficient and responsive applications
Specifically addresses common performance pitfalls and provides practical solutions to overcome them
Suitable for learners who seek to enhance the performance of their React applications
Guided by instructor Hendrik Swanepoel, known for expertise in React and frontend development

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Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Optimize Performance for React with these activities:
Create a knowledge base of performance optimization techniques
Develop a central repository of notes, code snippets, and resources for reference and future use.
Browse courses on Knowledge Base
Show steps
  • Gather materials from the course and other sources.
  • Organize and categorize the materials.
  • Create a digital or physical repository.
  • Review and update the knowledge base regularly.
Practice identifying wasted renders
Practice identifying wasted renders in React applications to improve performance.
Show steps
  • Create a React application with sample components
  • Analyze the React application for wasted renders
  • Implement techniques to reduce wasted renders
  • Test the React application to verify performance improvements
Use React DevTools for performance optimization
Understand the performance benefits and how to use the React DevTools to optimize your applications.
Browse courses on Performance Optimization
Show steps
  • Open React DevTools and navigate to the 'Components' tab.
  • Select a component and inspect its performance data.
  • Identify performance bottlenecks and explore optimization options.
  • Implement performance optimizations based on insights from React DevTools.
Five other activities
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Collaborate in peer review sessions
Engage with peers to share knowledge, provide feedback, and improve your understanding of performance optimization in React.
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Show steps
  • Find a study partner or join a peer review group.
  • Share your code and insights with your peers.
  • Provide constructive feedback and suggest improvements.
  • Incorporate feedback and refine your approach.
Attend a workshop on React performance optimization
Gain in-depth knowledge and interact with experts in the field of React performance optimization.
Show steps
  • Research and find a relevant workshop.
  • Register and attend the workshop.
  • Actively participate in discussions and hands-on exercises.
  • Network with experts and peers.
Follow tutorials on React bundle optimization
Follow tutorials to explore advanced techniques for optimizing React bundles and reducing application size.
Show steps
  • Identify the tutorials to be followed
  • Set up a React application for optimization
  • Implement the optimization techniques
  • Evaluate and compare the results
Create a performance-optimized React application
Demonstrate your ability to apply the concepts of performance optimization in a practical setting.
Browse courses on React Development
Show steps
  • Design and plan your React application with performance in mind.
  • Implement code optimizations and techniques covered in the course.
  • Measure and analyze the performance of your application.
  • Document your approach and share your findings.
Participate in a React performance optimization hackathon
Challenge yourself and showcase your skills in a competitive environment focused on performance optimization.
Show steps
  • Find and register for a relevant hackathon.
  • Form a team or work independently.
  • Develop a React application with exceptional performance.
  • Present your solution and compete for recognition.

Career center

Learners who complete Optimize Performance for React will develop knowledge and skills that may be useful to these careers:
React Developer
As the title of this role suggests, a React Developer is focused primarily on building and maintaining React applications. As such, taking a course like Optimize Performance for React will give you the skills and knowledge necessary to create effective, performant, and scalable React applications. This is an ideal course for someone in this field as it goes over the common performance pitfalls and how to address them.
Performance Engineer
A Performance Engineer focuses on analyzing and optimizing the performance of computer systems and applications. As React is a popular framework for building high-performance applications, a course like Optimize Performance for React can help you develop the skills you need to succeed in a career as a Performance Engineer. By understanding how to identify and address performance issues in React applications, you can create highly efficient and performant systems.
UI Developer
A UI Developer focuses on designing and developing user interfaces for websites and applications. Due to React's popularity when it comes to user interfaces, a course like Optimize Performance for React can help you to develop applications that have intuitive and responsive UIs. This course can be particularly helpful when you work with complex and dynamic user interfaces.
Front-End Developer
A Front-End Developer focuses on what users see and interact with when using a website or application. This includes dealing with the user interface (UI) and user experience (UX). Since React is commonly used to build user interfaces, taking a course like Optimize Performance for React can help you build a strong foundation for the work that you will do in this field. By learning how to create efficient and fast-loading React applications, you can contribute to UIs and UXs that will meet the demanding needs of modern users.
Full-Stack Developer
Full-Stack Developers are responsible for both the front-end and back-end development of websites and applications. Since React is commonly used to build front-end applications, a course like Optimize Performance for React can help you create more efficient and performant front-ends for your full-stack applications. For full-stack developers who work on React-based applications, in particular, this course can be instrumental in helping you develop more effective applications.
JavaScript Developer
JavaScript Developers write and maintain code to create and manage websites and applications. Since React is a JavaScript library, a course on React performance optimization can help you create more efficient and performant JavaScript applications. For JavaScript Developers who work on React-based applications, in particular, this course can be instrumental in helping you develop more effective applications.
Web Developer
Web Developers are responsible for developing and maintaining websites, applying a blend of coding and design to their projects. As some websites use React, a course like this one can provide foundational knowledge on how to create efficient and performant React applications for the internet. The skills you will learn in this course are particularly relevant to more complex websites with heavy interactivity.
Technical Lead
A Technical Lead is responsible for providing technical guidance and leadership to software development teams. As React is a popular framework for building software products and services, a course like Optimize Performance for React can help you to develop the technical expertise and leadership skills you need to succeed as a Technical Lead. This course may be particularly helpful for leads who are working with teams that are developing React-based applications.
Engineering Manager
An Engineering Manager oversees the technical aspects of a project or organization, providing leadership and guidance to engineering teams. As React is a popular framework for building software products and services, a course like Optimize Performance for React can help you to develop the technical expertise and leadership skills you need to succeed as an Engineering Manager. This course may be particularly helpful for managers who are working with teams that are developing React-based applications.
Software Development Manager
A Software Development Manager oversees the development of software products and services. As React is a popular framework for building software, a course like Optimize Performance for React can help you to oversee the creation of efficient and performant software products and services. This course may be particularly helpful for managers who are working with teams that are developing React-based applications.
Principal Software Engineer
Principal Software Engineers are responsible for leading and mentoring software development teams. As React is a popular framework for building software products and services, a course like Optimize Performance for React can help you to develop the technical expertise and leadership skills you need to succeed as a Principal Software Engineer. This course may be particularly helpful for engineers who are working on React-based applications.
Software Architect
A Software Architect is responsible for designing and developing software systems, applying technical expertise to complex problems. As React is a popular framework for building software systems, taking a course like Optimize Performance for React can add to your skillset in this role. By mastering performance optimizations, you can develop highly efficient and performant software systems during your career.
Computer Programmer
Computer Programmers are responsible for writing and maintaining the code that powers a wide range of applications and software. As React is a popular framework for building software, a course like Optimize Performance for React can add to your skillset in this role. By mastering performance optimizations, you can develop highly efficient and performant applications throughout your career.
Senior Software Engineer
Senior Software Engineers are responsible for designing, developing, and maintaining complex software systems. As React is a popular framework for building software products and services, a course like Optimize Performance for React can help you to develop the technical expertise you need to succeed as a Senior Software Engineer. This course may be particularly helpful for engineers who are working on React-based applications.
Software Engineer
As a Software Engineer, you will get to design, develop, and test software systems, leveraging an arsenal of programming languages, including tools from React. As your work in this role will involve performing optimizations on React-based software, taking a course like Optimize Performance for React may help you develop a foundation of knowledge that you can apply to your projects and collaborations. This course may be particularly helpful if you are early in your career or if you are looking to pick up React performance optimization techniques that can be applied to your role.

Reading list

We've selected ten books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Optimize Performance for React.
Practical guide to optimizing the performance of React applications. It covers a wide range of topics, including profiling, code splitting, and lazy loading. It's a great resource for learning how to identify and fix performance bottlenecks in your React apps.
Provides a comprehensive overview of JavaScript performance optimization techniques, covering topics such as memory management, event handling, and rendering performance. It's a valuable resource for understanding the underlying principles of React performance and how to apply them in your own applications.
Provides a practical guide to React. It covers all the essential concepts, including performance optimization. Useful for those who want to learn React as well as for those who want to optimize the performance of their React applications.
Provides a comprehensive guide to React. It covers all the essential concepts, including performance optimization. Useful for those who want to learn React as well as for those who want to optimize the performance of their React applications.
Provides a comprehensive overview of functional programming in JavaScript. It's a valuable resource for learning how to write React components that are more performant and easier to maintain.
Provides a comprehensive overview of the principles and patterns for designing data-intensive applications. It's a valuable resource for learning how to design and build React applications that can handle large amounts of data efficiently.
Provides a comprehensive overview of the principles and patterns for designing scalable systems. It's a valuable resource for learning how to design and build React applications that can handle high levels of traffic and concurrency.
Provides a collection of common JavaScript patterns that can be used to improve the performance and maintainability of your code. It's a valuable resource for learning how to apply design patterns to your React applications.
Provides a concise overview of the good parts of JavaScript. It's a valuable resource for learning the core principles of the language and how to write high-quality JavaScript code.

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