The most important thing to know about Svelte is that it doesn't have a runtime. All the magic occurs in places that look magic, and all the magic happens at co

The most important thing to know about Svelte is that it doesn't have a runtime. All the magic occurs in places that look magic, and all the magic happens at compile time; at runtime it's simply a library. By contrast, React's VDOM system not only adds significant cognitive complexity but performs terribly too.