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https://github.com/zipcodecore/windsurf-demo

Demonstrate the Windsurf AI Editor
https://github.com/zipcodecore/windsurf-demo

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Demonstrate the Windsurf AI Editor

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README 

          
# Windsurf Editor Demo: AI-Powered Development



## What is Windsurf?



Windsurf is an advanced AI-powered code editor built on the foundation of VS Code that combines the functionality of a copilot and an agent. Formerly known as Codeium, Windsurf offers a cleaner UI, faster performance, and innovative features designed to keep developers in flow.



## Key Features



### 1. Cascade Flow System



At the heart of Windsurf lies the Cascade Flow system - an AI-driven development environment that creates a seamless coding experience:



- **Knowledge Cascade**: Understands your codebase semantically and adapts as you code

- **Tools Cascade**: Provides AI-driven tools for searching, editing, and executing code efficiently

- **Real-time awareness**: Automatically reasons about your explicit actions in the editor



### 2. Write Mode



Windsurf features an innovative "Write Mode" where you can:

- Write and generate files directly from your prompts

- Turn it off to use chat as you would in a traditional assistant



### 3. Multi-File Editing



Unlike traditional code editors:

- Make changes across multiple files simultaneously

- Deep contextual awareness for production codebases

- Create self-consistent changes across files



### 4. Terminal Integration



- Terminal command suggestions

- Debug and execute code within the editor

- If code execution fails, Windsurf can iterate and fix issues



### 5. AI Models Integration



Access to various AI models:

- Claude 3.5 (recommended for most code generation tasks)

- Deepseek R1

- Gemini 2.0 Flash



## Practical Examples



### Example 1: Building a Web App from Scratch



```

Prompt: "Create a simple React to-do list app with local storage"

```



Windsurf will:

1. Create necessary file structure

2. Generate component files:

   - `App.js` - Main component

   - `TodoList.js` - List component

   - `TodoItem.js` - Individual item component

   - `TodoForm.js` - Form for adding new items

3. Implement local storage functionality

4. Set up state management

5. Add basic CSS styling



You'll see a diff preview of all files before accepting the changes.



### Example 2: Refactoring Existing Code



```

Prompt: "Refactor this function to use async/await instead of promises"

```



For a function like:



```javascript

function fetchUserData(userId) {

  return fetch(`/api/users/${userId}`)

    .then(response => {

      if (!response.ok) {

        throw new Error('User not found');

      }

      return response.json();

    })

    .then(data => {

      return {

        name: data.name,

        email: data.email,

        role: data.role

      };

    })

    .catch(error => {

      console.error('Error fetching user:', error);

      return null;

    });

}

```



Windsurf will intelligently refactor to:



```javascript

async function fetchUserData(userId) {

  try {

    const response = await fetch(`/api/users/${userId}`);

    if (!response.ok) {

      throw new Error('User not found');

    }

    const data = await response.json();

    return {

      name: data.name,

      email: data.email,

      role: data.role

    };

  } catch (error) {

    console.error('Error fetching user:', error);

    return null;

  }

}

```



### Example 3: Debugging Code



When you have an error in your terminal:



```

TypeError: Cannot read property 'filter' of undefined

    at filterActiveUsers (./src/utils/userUtils.js:15:27)

    at renderUserList (./src/components/UserList.js:42:34)

```



1. Click on the terminal

2. Press Ctrl + I for inline chat

3. Type: "Help me fix this error"



Windsurf will:

- Analyze the error stack trace

- Locate the relevant code files

- Identify the issue (likely `users` array is undefined)

- Suggest a fix with proper null checking:



```javascript

// Original code in userUtils.js

function filterActiveUsers(users) {

  return users.filter(user => user.isActive);

}



// Windsurf's suggested fix

function filterActiveUsers(users) {

  return users ? users.filter(user => user.isActive) : [];

}

```



### Example 4: Working with Test Files



```

Prompt: "Write tests for this authentication service"

```



Given an `authService.js` file:



```javascript

export const authService = {

  login: async (username, password) => {

    // Implementation

  },

  logout: () => {

    // Implementation

  },

  resetPassword: async (email) => {

    // Implementation

  }

};

```



Windsurf will generate a comprehensive test file:



```javascript

import { authService } from './authService';



jest.mock('./apiClient', () => ({

  post: jest.fn(),

  delete: jest.fn()

}));



describe('Auth Service', () => {

  beforeEach(() => {

    jest.clearAllMocks();

    localStorage.clear();

  });

  

  describe('login', () => {

    it('should store token on successful login', async () => {

      // Test implementation

    });

    

    it('should throw error on invalid credentials', async () => {

      // Test implementation

    });

  });

  

  // Tests for logout and resetPassword

});

```



### Example 5: Adding Features to Existing Projects



```

Prompt: "Add input validation to this form"

```



For a basic form component:



```javascript

function ContactForm() {

  const [name, setName] = useState('');

  const [email, setEmail] = useState('');

  const [message, setMessage] = useState('');

  

  const handleSubmit = (e) => {

    e.preventDefault();

    // Submit logic

  };

  

  return (

    

       setName(e.target.value)} 

        placeholder="Name" 

      />

       setEmail(e.target.value)} 

        placeholder="Email" 

      />

       setMessage(e.target.value)} 

        placeholder="Message" 

      />

      Send

    

  );

}

```



Windsurf will add validation:



```javascript

function ContactForm() {

  const [name, setName] = useState('');

  const [email, setEmail] = useState('');

  const [message, setMessage] = useState('');

  const [errors, setErrors] = useState({});

  

  const validate = () => {

    const newErrors = {};

    

    if (!name.trim()) newErrors.name = 'Name is required';

    

    if (!email.trim()) {

      newErrors.email = 'Email is required';

    } else if (!/\S+@\S+\.\S+/.test(email)) {

      newErrors.email = 'Email is invalid';

    }

    

    if (!message.trim()) newErrors.message = 'Message is required';

    

    setErrors(newErrors);

    return Object.keys(newErrors).length === 0;

  };

  

  const handleSubmit = (e) => {

    e.preventDefault();

    if (validate()) {

      // Submit logic

    }

  };

  

  return (

    

      


         setName(e.target.value)} 

          placeholder="Name" 

          className={errors.name ? 'error' : ''}

        />

        {errors.name && {errors.name}}

      


      

      


         setEmail(e.target.value)} 

          placeholder="Email" 

          className={errors.email ? 'error' : ''}

        />

        {errors.email && {errors.email}}

      


      

      


         setMessage(e.target.value)} 

          placeholder="Message" 

          className={errors.message ? 'error' : ''}

        />

        {errors.message && {errors.message}}

      


      

      Send

    

  );

}

```



## Using Windsurf



### Basic Workflow



1. **Start Cascade**: Press Command + L to open Cascade

2. **Use Natural Language**: Type your request, like "Create a login form with validation"

3. **Review Changes**: Windsurf shows diffs of proposed changes

4. **Accept Changes**: Apply all or select specific changes to implement



### Advanced Features



- **Inline Edits**: Click on specific code and press Ctrl + I to access inline edits

- **Terminal Integration**: Click on terminal window and press Ctrl + I for inline chat

- **Memories**: Cascade creates automatic memories to optimize responses

- **Automatic Bug Fixing**: If Cascade generates code that doesn't pass a linter, it will automatically fix errors



## Platform Availability



Windsurf Editor is available for:

- macOS

- Windows

- Linux



## Getting Started



1. Download from the official website (https://windsurf.com or https://codeium.com/windsurf)

2. Install on your system

3. Open a project folder to begin

4. Press Command + L to start using Cascade



### Customizing Windsurf



Windsurf provides several customization options to enhance your workflow:



#### 1. Configure AI Model Preferences



1. Go to Settings (⚙️)

2. Select "AI Settings"

3. Choose your preferred AI model:

   - Claude 3.5 (best for complex reasoning)

   - Gemini 2.0 Flash (faster response time)

   - Deepseek R1 (good for specific coding tasks)



#### 2. Create Custom Commands



You can set up custom commands for frequent operations:



1. Open Settings

2. Navigate to "Command Templates"

3. Add a new template with:

   - Name (e.g., "Generate API Documentation")

   - Template text (e.g., "Generate documentation for the following API endpoint: {selection}")

   - Shortcut key (optional)



#### 3. Create Memories for Project-Specific Guidelines



For consistent code generation across your team:



1. Open Cascade

2. Type: "Create a new memory with the following rules"

3. Define your project-specific guidelines

4. Name your memory for easy reference



## Pro Tips



- Use Claude 3.5 for more complex code generation tasks

- For specific code edits, use inline editing instead of full file generation

- Remember that Windsurf is powerful but not perfect - always review generated code

- Use the terminal integration for debugging and running commands



## Comparison with Other AI Code Editors



### Windsurf vs. Cursor



While both are AI-powered editors built on VS Code, Windsurf offers:

- Generally cleaner UI with more refined details

- Often faster performance, especially on Linux

- Different pricing model ($15/seat vs. Cursor's $20/seat)

- Original "Cascade" feature that inspired Cursor's agent mode



### Unique Advantages



- **Developer Flow**: Windsurf emphasizes maintaining developer flow - making changes seamlessly without interrupting your workflow

- **Cleaner Interface**: Focuses on simplicity with fewer UI elements and options

- **Performance**: Engineered to be lean and fast with a smaller memory footprint than standard VS Code

- **VS Code Extensions**: Full access to the VS Code extension marketplace



## Real-World Development Scenarios



### Onboarding to a New Codebase



When joining a new project:



1. Open the codebase in Windsurf

2. Use Cascade: "Explain the architecture of this project"

3. Ask: "What are the main components and how do they interact?"

4. Request: "Show me where the API endpoints are defined"



### Automating Repetitive Tasks



For tasks like updating copyright headers:



1. Open Cascade

2. Type: "Update all copyright headers in this project to include 2025"

3. Review the proposed changes across all files

4. Accept all changes with one click



---



*Note: This demo showcases the main features of Windsurf Editor. Actual functionality may vary based on the version you're using.*