𝗧𝗵𝗶𝘀 𝗜𝘀 𝗔 𝗚𝗨𝗜𝗗𝗘 𝗧𝗼 𝗕𝗨𝗜𝗟𝗗𝗜𝗡𝗚 𝗔𝗖𝗖𝗘𝗦𝗦𝗜𝗕𝗟𝗘 𝗪𝗘𝗕 𝗖𝗢𝗠𝗣𝗢𝗡𝗘𝗡𝗧𝗦 You want to build web components that work well and are accessible. Here's a guide to help you do that.

  • Build a reusable web component that exposes a clean API.
  • Ensure accessibility with ARIA attributes and keyboard support.
  • Optimize for performance with Shadow DOM and lazy rendering.
  • Provide theming and responsiveness without coupling to a framework.
  • Include tests and a small build setup to run locally.

Key outcomes:

  • A drop-in profile-card web component you can ship in multiple apps.
  • Clear separation between component logic, styling, and data.
  • A guide to extending the component with additional slots, props, or micro-interactions.

You can use this component in your HTML like this:

<profile-card id="pc" name="Alex" title="Engineer">
  <span slot="bio">Custom bio here.</span>
  <span slot="social">Twitter: @alex</span>
</profile-card>

This component uses a Shadow DOM to encapsulate styles and prevent leakage. It also uses CSS variables for theming and ARIA attributes for accessibility.

Source: https://dev.to/therizwansaleem/building-accessible-performant-web-components-a-practical-frontend-pattern-guide-3l8k