When it comes to building user interfaces on the web, React enables web developers to unlock a new world of possibilities. This practical book helps you take a deep dive into fundamental concepts of this JavaScript library, including JSX syntax and advanced patterns, the virtual DOM, React reconciliation, and advanced optimization techniques. By becoming fluent in React, you'll quickly learn how to build better web applications.Author Tejas Kumar helps you explore the depths of React in plain English, without the typical software engineering jargon, so you can more easily understand how this JavaScript library works. You'll learn how to write intuitive React code that fully understands the nuances and layers of React, unlocking a whole new level of fluency.You will:Understand how React works at a deeper levelWrite React apps while optimizing them along the wayBuild resilient React applications that work well at arbitrary scaleCreate React applications for other platforms adjacent to the web and mobile devicesKnow when to reach for different mechanisms exposed by React, such as reducers versus state versus refsAbout the AuthorTejas Kumar has been writing React code since 2014 and has given multiple conference talks, workshops, and guest lectures on the topic. With his wealth of experience across the technical stack of multiple startups, Tejas has developed a deep understanding of React’s core concepts and enjoys using it to encourage, equip, and empower others to write React apps fluently.