Stencil is a compiler for building fast web apps using Web Components.
Stencil combines the best concepts of the most popular frontend frameworks into a compile-time rather than run-time tool. Stencil takes TypeScript, JSX, a tiny virtual DOM layer, efficient one-way data binding, an asynchronous rendering pipeline (similar to React Fiber), and lazy-loading out of the box, and generates 100% standards-based Web Components that run in any browser supporting the Custom Elements v1 spec.
Stencil components are just Web Components, so they work in any major framework or with no framework at all. In many cases, Stencil can be used as a drop in replacement for traditional frontend frameworks given the capabilities now available in the browser, though using it as such is certainly not required.
Stencil also enables a number of key capabilities on top of Web Components, in particular Server Side Rendering (SSR) without the need to run a headless browser, pre-rendering, and objects-as-properties (instead of just strings).
This demo is a news PWA that showcases best practices and the performance of a stencil app.
On WebPageTest on a moto g and emerging markets 3g this app hits first paint in 1.9 seconds and is totally interactive at 2.1 seconds. https://www.webpagetest.org/lighthouse.php?test=170731_ZK_1DQW&run=2
To start this project on your machine, clone this repo and run:
npm startTo view the build, start an HTTP server inside of the /www directory.
To watch for file changes during develop, run:
npm run devTo build the app for production, run:
npm run build