How to Use GitHub Copilot for JavaScript Projects in Under 30 Minutes

As a solo developer or indie hacker, you often find yourself juggling multiple tasks at once. Between coding, debugging, and managing your project, time is precious. Enter GitHub Copilot—an AI-powered code completion tool that can help you write JavaScript faster and more efficiently. But how do you actually get started with it in a meaningful way? In this guide, I’ll show you how to set up and use GitHub Copilot for your JavaScript projects in under 30 minutes.

Prerequisites

Before diving in, you’ll need a few things:

• GitHub Account: If you don’t have one, you can sign up for free.
• Visual Studio Code (VS Code): Download and install it if you haven't already.
• GitHub Copilot Subscription: As of March 2026, it costs $10/month or $100/year. There’s a free trial available for new users.

Step 1: Set Up GitHub Copilot

1. Install the GitHub Copilot Extension:

   • Open VS Code.
   • Go to the Extensions view by clicking on the square icon in the sidebar or pressing Ctrl+Shift+X.
   • Search for "GitHub Copilot" and click "Install".

2. Sign In to GitHub:

   • After installation, you’ll be prompted to sign in to your GitHub account.
   • Follow the on-screen instructions to authorize the extension.

3. Activate Copilot:

   • Once signed in, GitHub Copilot should be active. If you see a small icon in the bottom right corner of VS Code, it means everything is set up correctly.

Step 2: Start Coding with Copilot

1. Create a New JavaScript File:

   • Create a new file with the .js extension in your project directory.

2. Write a Comment:

   • Start by typing a comment that describes what you want to do. For example:

     // Function to calculate the factorial of a number
     

3. Let Copilot Suggest Code:

   • After the comment, press Enter. Copilot will automatically suggest code based on your comment.
   • You can accept the suggestion by pressing Tab or Enter.

4. Refine Suggestions:

   • If the suggestion isn’t quite right, you can modify it, and Copilot will adapt to your changes.
   • Keep iterating until you get the code you need.

Step 3: Test Your Code

• After writing your function, run your JavaScript file to see if it works as expected. You can do this using Node.js:

  node yourfile.js
  

Troubleshooting Common Issues

• Copilot Not Suggesting Code: Ensure that the extension is enabled and you are connected to the internet.
• Suggestions Are Irrelevant: Try to write clearer comments or more specific function names to guide Copilot better.

What’s Next?

Now that you have the basics down, consider the following steps to enhance your coding experience:

• Explore Advanced Features: Learn how to use Copilot with TypeScript or integrate it into larger projects.
• Collaborate with Others: Consider using Copilot in team settings to see how it can improve group productivity.
• Review Code Quality: Always double-check the code suggestions for best practices and performance.

Conclusion

Using GitHub Copilot for your JavaScript projects can significantly speed up your coding process, allowing you to focus on building rather than just writing code. Start with the setup outlined here, and you’ll be on your way to more efficient development in no time.

What We Actually Use

In our experience, we primarily use GitHub Copilot for rapid prototyping and when we need to generate boilerplate code quickly. However, we always review the suggestions for accuracy and efficiency.