JavaScript rendering patterns with Matheus Albuquerque
Aug 16, 2023
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Matheus Albuquerque, Senior Software Engineer at Medallia, discusses JavaScript rendering patterns including hydration, islands, streaming, resumability, and edge compute. The podcast explores the challenges of hydration, the uncanny valley in JavaScript rendering, and different types of JavaScript hydration methods. It also delves into resumability, progressive hydration, and streaming server-side rendering, and their potential impact on React 18.
The significance of different rendering approaches, such as hydration, islands, streaming, and resumability, in front-end development.
The importance of continuously evaluating and revisiting previous rendering concepts, combining the best aspects of different approaches for optimal front-end performance and user experiences.
Deep dives
The Importance of Hydration, Islands, Streaming, and Resumability in Front-End Development
In this podcast episode, Matteus Albuquerque, a senior front-end engineer, discusses the significance of hydration, islands, streaming, and resumability in the context of front-end development. He explains that there are various factors to consider when choosing the most suitable rendering approach, such as where and how content should be rendered. The discussion covers different rendering environments, including web servers, build servers, and the edge. Matteus also delves into the concept of resumability, which allows work to pause on the server and continue on the client, highlighting its potential benefits in terms of start-up performance and progressive interactivity. Additionally, he touches on server components, which are seen as a routing paradigm integrated with data patching and bundling. The talk concludes by acknowledging the evolving landscape of rendering techniques and the likelihood of revisiting past ideas with newly discovered insights.
Understanding the Distinction Between Server-Side Rendering and Hydration
Matteus clarifies the difference between server-side rendering (SSR) and hydration. While hydration refers to the process of making client-side components interactive after server rendering, server-side rendering relates to the generation of initial HTML on the server. He emphasizes that server components, despite the name, should not be confused with server-side rendering. Matteus acknowledges that there is ongoing progress in exploring various rendering approaches, with new concepts emerging alongside refinements of existing techniques. He predicts that future discussions will likely reassess the pros and cons of different rendering strategies, leading to innovative solutions and a cycle of revisiting previous ideas with fresh insights.
Importance of Selective and Progressive Hydration
Matteus discusses the significance of selective and progressive hydration as approaches to improving rendering performance. He explains how selective hydration prioritizes key interactive parts of an application during the hydration process, enabling faster interactivity for users. Progressive hydration, on the other hand, emphasizes a lazy or on-demand approach to hydrating components, providing improved start-up performance by avoiding unnecessary work. Matteus also highlights the benefits of streaming server-side rendering (SSR), which allows data to be loaded over the network in multiple chunks, providing potential optimizations such as parallel loading. He notes that these approaches, including resumability, bring new perspectives and optimizations to the rendering landscape.
Anticipating the Future of Rendering
Looking ahead, Matteus foresees continued innovation in rendering techniques, with new approaches and refinements emerging. He predicts that the future will witness a resurgence of past ideas but with improved insights and lessons learned. Matteus mentions the importance of revisiting decisions between MPAs (Multi-Page Applications) and SPAs (Single-Page Applications), highlighting that the industry will likely combine the best aspects of both approaches to achieve better performance and user experiences. He stresses the significance of continuously evaluating and building upon previous concepts, enhancing rendering strategies for optimal results in front-end development.
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Special Guest: Matheus Albuquerque.
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