# Getting the Most Out of GitHub Copilot Chat in VS Code

GitHub Copilot is already an incredible tool for autocompleting code, but if you haven’t tried **Copilot Chat**, you’re missing out on one of the most powerful AI developer workflows available today.

In this post, you’ll walk through:

* How to use Copilot Chat in VS Code
    
* What it’s best at
    
* Real-world prompts you can use right away
    

## What Is GitHub Copilot Chat?

Copilot Chat brings the power of ChatGPT **directly into VS Code**, allowing you to ask natural language questions about your code, request explanations, generate tests, fix bugs, refactor logic, and more — without ever leaving your editor.

It’s like having an AI pair programmer that:

* Understands your code context
    
* Works inline or in a chat panel
    
* Helps you learn, debug, and ship faster
    

## What Can You Use Copilot Chat For?

Here are some powerful use cases:

### Code Understanding & Explanation

You can highlight any block of code and ask:

* “Explain what this code does”
    
* “What is the time complexity here?”
    
* “Why am I getting this TypeError?”
    

### Code Improvement & Refactoring

Ask it to:

* “Refactor this function to be cleaner”
    
* “Optimize this loop”
    
* “Suggest better variable names”
    

### Test Generation

Save hours writing boilerplate with prompts like:

* “Write unit tests for this function using Jest”
    
* “Generate test cases for edge inputs”
    

### Code Conversion & Migration

Let it help with transitions like:

* “Convert this JS code to TypeScript”
    
* “Rewrite this to use async/await”
    
* “Switch from useEffect to React Query”
    

### General Cleanup

Ask it to:

* “Remove unused imports”
    
* “Simplify this logic”
    
* “Make this more readable”
    

## Some Example Prompts You Can Use Right Now

| Use Case | Example Prompt |
| --- | --- |
| Understand Code | `Explain this function step by step` |
| Improve Performance | `Optimize this loop for large datasets` |
| Refactor Logic | `Make this code more readable and concise` |
| Convert Language | `Translate this from Python to JavaScript` |
| Debug Errors | `Fix the error in this fetch call` |
| Generate Tests | `Write unit tests for this React component` |
| Learn Concepts | `What is useMemo in React and when to use it?` |
| Clean Up Code | `Remove all unused variables from this file` |

> ✅ Tip: You can highlight a code block and then open Copilot Chat to get smarter, context-aware answers.

## How to Enable Copilot Chat in VS Code

1. Install the GitHub Copilot Chat extension from the [VS Code Marketplace](https://marketplace.visualstudio.com/items?itemName=GitHub.copilot-chat)
    
2. Make sure you’re signed in to GitHub with an active Copilot plan
    
3. Open the Copilot Chat panel or use `Cmd/Ctrl + I` to start inline chat
    
4. Highlight code and right-click → **Ask Copilot**
    

## Final Thoughts

Copilot Chat takes the promise of AI-assisted development to the next level. It’s not just about writing code faster — it’s about **thinking through problems, debugging more efficiently, and learning as you go**, all inside your editor.