✨ Developer Experience: Callbacks, Error Handling, and Maintainability

This content originally appeared on DEV Community and was authored by FSCSS tutorial

• Built-in Callbacks: FSCSS provides onSuccess and onError hooks for better control over style execution results. Use them to log, debug, or respond to runtime style application.
• Error Reporting: Errors are caught and reported through a clean callback interface, making debugging straightforward and user notifications possible.
• Maintainable Structure: The exec() method uses named parameters, improving readability and maintainability—especially useful for scaling or integrating multiple stylesheets. Example: Dynamically Load a Remote FSCSS File with Debugging

  import { exec } from "https://cdn.jsdelivr.net/npm/fscss@1.1.6/e/xfscss.min.js";

  const DEBUG = true;

  function applyFSCSS({ type, content }) {
    exec({
      type,
      content,
      onSuccess: (styleElement) => {
        if (DEBUG) console.log("✅ FSCSS applied:", styleElement);
      },
      onError: (error) => {
        console.error("❌ Failed to apply FSCSS:", error);
        alert("⚠ Could not load styles. Please try again later.");
      }
    });
  }

  applyFSCSS({
    type: "URL",
    content: "styles/style.fscss"
  });

This content originally appeared on DEV Community and was authored by FSCSS tutorial