How to Use GitHub Copilot to Write Your First 10 Functions (2026)

As a solo founder or indie hacker, you often wear many hats. Writing code can feel overwhelming, especially when you're just trying to get your project off the ground. That's where GitHub Copilot comes in. It's like having a coding buddy that suggests entire functions based on the context you're working in. But how do you leverage it effectively? Let's break it down step-by-step.

Time Estimate: 1-2 hours to get comfortable with GitHub Copilot

Prerequisites:

• A GitHub account
• Visual Studio Code (VS Code) installed
• GitHub Copilot subscription ($10/month after a 14-day free trial)

Getting Started with GitHub Copilot

Step 1: Set Up Your Environment

1. Install VS Code: If you haven't already, download and install Visual Studio Code from here.
2. Install GitHub Copilot: Open VS Code, go to the Extensions view (Ctrl+Shift+X), and search for "GitHub Copilot". Click "Install".
3. Sign In: After installation, sign in using your GitHub account.

Step 2: Write Your First Function

1. Create a New File: Start a new JavaScript file (or any language of your choice).
2. Comment Your Intent: Type a comment describing what you want the function to do. For example:

   // Function to add two numbers
   

3. Let Copilot Suggest: After typing the comment, hit Enter and see what Copilot suggests. It usually generates the function you need.

Step 3: Iterate and Improve

1. Review the Code: Check the suggested code for accuracy and efficiency.
2. Modify as Needed: You can tweak the function to better fit your requirements. For example, if you need to handle edge cases, add conditions.

Repeat for 10 Functions

Continue this process for your first ten functions. Here are some ideas to get you started:

1. Add two numbers
2. Subtract two numbers
3. Multiply two numbers
4. Divide two numbers
5. Find the maximum of an array
6. Calculate the factorial of a number
7. Check if a string is a palindrome
8. Sort an array
9. Fetch data from an API
10. Validate an email address

What Could Go Wrong

• Over-reliance: Don’t blindly trust Copilot; always review the code it generates. It can make mistakes or suggest insecure coding practices.
• Learning Curve: It might take a while to get used to how Copilot works. Be patient and practice.

What's Next

Once you've written your functions, consider integrating them into a larger project. This will help solidify your understanding and improve your coding skills. You might also want to explore other AI coding tools that complement GitHub Copilot.

Conclusion

GitHub Copilot can significantly speed up your coding process, especially when you're just starting. By following the steps above, you'll be able to write your first ten functions in no time. Start with simple tasks and gradually tackle more complex ones. If you're looking for a way to enhance your coding efficiency, give GitHub Copilot a shot.

What We Actually Use

We primarily use GitHub Copilot for quick function generation during our development sprints. It helps us prototype features faster, but we always double-check the output to ensure quality.