Opt in Design – The New Era of React Frameworks – Ben Holmes, React Advanced 2023

React

Discover the power of Opt-in Design for React frameworks, enabling developers to tailor applications to specific needs, reduce unnecessary re-renders, and optimize performance. Learn how Astra, useMemo, useEffect, and other hooks simplify the process.

Key takeaways

Opt-in design allows for flexibility and control over complexity, enabling developers to tailor their applications to specific needs.
React’s reactivity model defaults to re-rendering the entire component tree, which can result in poor performance. Opt-in design allows developers to opt-out of unnecessary re-renders.
Server-side rendering (SSR) can improve performance by allowing the server to compute information before sending the initial HTML to the client. Opt-in design enables developers to choose when to use SSR.
Astra is a framework that enables opt-in design, allowing developers to create lightweight, fast, and secure applications.
The useMemo hook can be used to prevent unnecessary re-renders by memoizing a value and re-computing it only when necessary.
The useEffect hook can be used to run side effects only when necessary, rather than on every re-render.
Opt-in design can improve performance by reducing the amount of JavaScript that needs to be executed on the client.
React’s suspense mechanism can be used to handle loading states and streaming information from the server.
Astro’s useSuspense hook can be used to create a suspense boundary and render fallback content while waiting for data to stream in.
The dino flag can be used to indicate whether to use a server-driven approach or a client-driven approach.
Opt-in design encourages developers to be mindful of performance and optimize their applications for specific use cases.
React’s server components can be used to create server-side rendered components that can be optimized for performance.
Opt-in design can improve performance by reducing the amount of re-renders and re-computations.
The useCallback hook can be used to memoize a function and prevent unnecessary re-renders.

Opt in Design – The New Era of React Frameworks – Ben Holmes, React Advanced 2023

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