One of the challenges of creating a rich, interactive browser-based experience is in minimizing the time from first request to full user interactivity. When starting up, the application may need to download large amounts of JavaScript to the browser or execute a lengthy process to restore application state on the server. Qwik is a new front-end framework that serializes application state so it can be rendered on the server without rehydrating and replaying application logic. This is achieved through resumability, which involves pausing execution on the server to resume it on the client. Like other newer front-end frameworks, such as Astro or Svelte, Qwik also speeds up initial page load times by minimizing the amount of JavaScript to load. In Qwik's case, the initial application download is primarily HTML, with most JavaScript loaded dynamically on demand from a local cache, if possible.
