Advanced Frontend

Why state libraries insist on immutability, how streaming actually breaks, how the browser reads HTML, how the cascade is computed. Not above the API surface — beneath it.

코스

• HTML — One Tag Stands In For a Feature — Why a button made from a div is not a button
• CSS — The Later Rule Wins — The real reason you end up reaching for !important
• State Management — Build the Library Yourself — Why every one of them insists on immutability
• SSE — How the Server Speaks First — It works, so why does it all appear at once
• SSR — The Server Draws First — When the server and the client produce different HTML