Pros of single-spa

• More comprehensive framework with built-in lifecycle management
• Supports multiple frontend frameworks (React, Angular, Vue, etc.)
• Active development and larger community support

Cons of single-spa

• Steeper learning curve due to its complexity
• Requires more configuration and setup
• May introduce additional overhead for smaller applications

Code Comparison

micro-frontends:

<script src="https://unpkg.com/zone.js"></script>
<script src="https://unpkg.com/@webcomponents/webcomponentsjs/webcomponents-loader.js"></script>
<link rel="import" href="/components/app-container.html">

single-spa:

import { registerApplication, start } from 'single-spa';

registerApplication(
  'app1',
  () => import('./app1/app1.js'),
  (location) => location.pathname.startsWith('/app1')
);

start();

Key Differences

• micro-frontends focuses on Web Components, while single-spa is framework-agnostic
• single-spa provides more advanced routing and lifecycle management
• micro-frontends has a simpler setup process, ideal for smaller projects
• single-spa offers better support for large-scale applications with multiple frameworks

Use Cases

• Choose micro-frontends for simpler projects or when focusing on Web Components
• Opt for single-spa in complex, large-scale applications with multiple frameworks or when requiring advanced routing and lifecycle management

Pros of module-federation-examples

• Extensive collection of examples showcasing various Module Federation use cases
• Demonstrates integration with popular frameworks like React, Vue, and Angular
• Provides real-world scenarios and best practices for implementing micro-frontends

Cons of module-federation-examples

• Focuses primarily on Webpack 5's Module Federation, limiting applicability to other approaches
• May be overwhelming for beginners due to the large number of examples
• Requires a deeper understanding of Webpack and module bundling concepts

Code Comparison

micro-frontends:

<script src="https://team-green.example.com/bundle.js"></script>
<script src="https://team-blue.example.com/bundle.js"></script>
<green-recos></green-recos>
<blue-basket></blue-basket>

module-federation-examples:

const HtmlWebpackPlugin = require("html-webpack-plugin");
const ModuleFederationPlugin = require("webpack/lib/container/ModuleFederationPlugin");
module.exports = {
  plugins: [
    new ModuleFederationPlugin({
      name: "app1",
      remotes: { app2: "app2@http://localhost:3002/remoteEntry.js" },
    }),
  ],
};

Summary

micro-frontends provides a simpler, framework-agnostic approach to micro-frontends, suitable for teams new to the concept. module-federation-examples offers a more advanced, Webpack-specific implementation with extensive examples, better suited for teams already familiar with module bundling and seeking to leverage Module Federation's capabilities.

Pros of qiankun

• More comprehensive and feature-rich, offering a complete micro-frontend solution
• Better documentation and community support
• Provides built-in support for multiple frameworks (React, Vue, Angular)

Cons of qiankun

• Steeper learning curve due to its complexity
• Potentially heavier performance impact on applications
• More opinionated, which may limit flexibility in some scenarios

Code Comparison

micro-frontends:

<script src="https://micro-frontends.org/0.1.2/micro-frontends.min.js"></script>
<micro-frontends>
  <fragment src="https://example.com/header"></fragment>
  <fragment src="https://example.com/content"></fragment>
</micro-frontends>

qiankun:

import { registerMicroApps, start } from 'qiankun';

registerMicroApps([
  { name: 'app1', entry: '//localhost:8080', container: '#container', activeRule: '/app1' },
  { name: 'app2', entry: '//localhost:8081', container: '#container', activeRule: '/app2' },
]);
start();

The micro-frontends approach focuses on simplicity and uses a declarative HTML-based syntax for composing micro-frontends. In contrast, qiankun employs a more programmatic JavaScript-based approach, offering greater control and flexibility in registering and managing micro-applications.