vite-plugin-vue-mcp-demo

Vue 3 Debugging Example with Vue DevTools

This project demonstrates how to use Vue DevTools with a Vue 3 application built using Vite.

Project Setup

# Install dependencies
npm install

# Start the development server
npm run dev

Components for Debugging

This project includes several components that demonstrate different aspects of Vue.js reactivity and state management:

1. Counter Component: A simple counter with reactive state
2. TaskList Component: A more complex component with nested state, computed properties, and methods

Debugging Features

The Vue DevTools plugin provides a variety of debugging tools that are automatically integrated when you run the application:

1. Component Inspector

• Inspect any component in the application by clicking on it in the browser
• View component hierarchy and relationships
• Examine props, data, computed properties, and event handlers

2. Timeline

• Track component events and their timing
• Monitor component rendering performance

3. State Management

• Monitor reactive state changes in real-time
• Edit state values directly from the DevTools interface

4. Console Integration

• Log debugging messages with context about your components
• Filter console messages by component

How to Use Vue DevTools

1. Open the DevTools panel:

   • Look for the Vue DevTools tab in your browser's development tools
   • Alternatively, use the floating Vue DevTools panel that appears in the bottom-right corner of the page

2. Inspect Components:

   • Navigate to the "Components" tab
   • Click on a component in the tree to view its details
   • Try manipulating the Counter and TaskList components and watch the state changes

3. Monitor Performance:

   • Use the "Timeline" tab to record and analyze component events
   • Check rendering times and identify potential bottlenecks

4. Debug State:

   • Watch the reactive state change as you interact with components
   • Try modifying state directly from the DevTools to see immediate effects

Debugging Tips

1. Use the console.log() statements in the components to track operations in the browser console
2. Set breakpoints in the browser's source panel to step through code execution
3. Use the Vue DevTools to monitor computed properties and watchers
4. Try editing component data directly from the DevTools to test different scenarios

Additional Resources

• Official Vue DevTools Documentation
• Vue.js Debugging Guide