In this web content, the author discusses the concept of building a modern JavaScript framework from scratch. They acknowledge feeling overwhelmed by the vast amount of knowledge in the framework world and find that building their own framework is a great way to learn. The author defines a modern JavaScript framework as one that comes after React, such as Lit, Solid, Svelte, or Vue. These frameworks have evolved from React and share similar foundational ideas, including using reactivity, cloned templates for DOM rendering, and modern web APIs. The author focuses on client-side rendering and highlights the use of proxies and in the post-React frameworks. They then guide readers through building a basic reactivity system and DOM rendering function for their own toy framework. The combination of reactivity and DOM rendering allows for dynamic updates to the DOM based on state changes. The author acknowledges that there are improvements that can be made to the system, particularly in handling updates to elements within a deep DOM tree. Overall, the content provides insights into the development of modern JavaScript frameworks and offers a starting point for building one.
https://nolanlawson.com/2023/12/02/lets-learn-how-modern-javascript-frameworks-work-by-building-one/