1 Are frontend frameworks magic to you?

Have you ever wondered how the frontend frameworks you use work internally? Are you curious about how they decide when to re-render a component and why they update only the parts of the Document Object Model (DOM) that change? Isn’t it interesting that a single HTML page can change its content without reloading and that the URL in the browser’s address bar changes without requesting the new page from a server? The inner workings of frontend frameworks are fascinating, and there’s no better way to learn about them than to build one from scratch. But why would you want to learn how frontend frameworks work? Isn’t it enough just to know how to use them?

1.1 Why build your own frontend framework?

1.2 The framework we’ll build

1.2.1 Features

1.2.2 Implementation plan

1.3 Overview of how a frontend framework works

1.3.1 The developer’s side

1.3.2 The browser side of an SPA

1.3.3 The browser and server sides of an SSR application

Summary