Qwik is a next-generation JavaScript framework created by the original creator of Angular. It was designed to solve specific problems with how modern web apps load and run, especially on slow networks or devices. Most frameworks ship too much JavaScript, causing data waterfalls (where different parts of a page pop in at different times) and making the experience feel sluggish.
Qwik introduces the concept of resumability, which means the app can start instantly from the server-rendered HTML without waiting for the JavaScript to rehydrate. Unlike other frameworks where clicking a button too early might do nothing, Qwik ensures interactivity is available immediately, while only loading the minimum code needed.
The Use Case
When to use (pros)
- Resumability-first: Skip the costly hydration step; the page is interactive as soon as the HTML loads.
- Performance on slow networks: Great for users with poor internet speeds or devices that struggle with heavy JavaScript.
- Granular lazy loading: Only loads the code thatās absolutely necessary at the moment.
- Built for the modern web: Addresses real-world issues like large JavaScript bundles and data waterfalls.
- SEO-friendly: Instant interactivity without waiting for client-side rendering makes it excellent for search engines.
When not to use (cons)
- Caching makes a difference: On most sites, JavaScript gets cached, so Qwikās benefits are less noticeable unless you have very dynamic or logic-heavy pages.
- You might not need it: If your app isnāt suffering from hydration issues or massive bundles, other frameworks may be simpler.
- Smaller ecosystem: It is a newer framework, so fewer libraries, tutorials, and community resources compared to React, Vue, or Angular.
- Learning curve: Introduces concepts like resumability and fine-grained lazy loading, which may take time to get used to.
- Wrong focus: There are probably more important things to tackle when it comes to designing your website.