Progressive Web Components
14 hours ago
- Web components face issues like layout shifts, flash of unstyled content, poor SSR support, heavy JavaScript reliance, framework incompatibility, and accessibility challenges.
- Progressive Web Components address these problems by using a two-layer design: a base HTML/CSS layer for immediate rendering and a JavaScript layer for interactivity.
- Elena is a 2.6kB library that enables building Progressive Web Components, focusing on HTML and CSS first with progressive JavaScript enhancement.
- Elena supports SSR by allowing components without render() to be fully SSR-compatible, and components with render() to partially render with optional server-side utilities.
- Key features of Elena include lightweight size, progressive enhancement, semantic accessibility, standards-based architecture, reactive updates, scoped styles, SSR support, zero dependencies, and zero framework lock-in.
- The library includes packages like @elenajs/core, @elenajs/bundler, @elenajs/cli, @elenajs/ssr, and @elenajs/mcp for building and managing web component libraries.
- Elena's v1.0.0-rc.7 is released with features for product teams, such as batched reactive re-renders and clean CSS encapsulation.