Build Your Own Router with URLPattern()
16 days ago
- #JavaScript
- #SPA
- #Routing
- URLPattern is now available in all browsers, enabling the creation of a simple SPA router with vanilla JavaScript.
- The challenge in routing is accurately testing the browser URL and capturing dynamic parts of routes (e.g., /posts/{post_id}).
- URLPattern examples show how to test route matches, including handling optional trailing slashes and wildcards.
- A router can be built using an array of config objects that map URL routes to web components, similar to vue-router.
- The router component tests the current URL against configs and renders the appropriate web component as a child.
- SPA navigation requires server configuration to serve the index page for all paths, with client-side handling of virtual paths.
- Handling link clicks involves preventing default navigation, testing URLs against patterns, and simulating page transitions.
- Browser back/forward navigation is managed via the popstate event, with the router updating the component based on the URL.
- A working example of the router is provided in StackBlitz for demonstration.