How to Use GitHub Copilot to Write Your First 100 Lines of Code in 1 Hour

If you’re a beginner looking to dip your toes into coding, it can be overwhelming. You might feel like you need a degree in computer science just to get started. But what if I told you that you could write your first 100 lines of code in just one hour? With GitHub Copilot, a powerful AI-powered coding assistant, this becomes a reality. In this guide, I’ll share how to leverage Copilot to get you coding quickly and efficiently.

Time Estimate and Prerequisites

You can finish this in about 1 hour. Before diving in, here’s what you’ll need:

• A GitHub account (free)
• A code editor like Visual Studio Code (free)
• The GitHub Copilot extension installed (free trial available, then $10/month)

Step-by-Step Guide

Step 1: Set Up Your Environment

1. Create a GitHub Account: If you don’t have one, sign up at GitHub.com.
2. Install Visual Studio Code: Download it from Visual Studio Code.
3. Install GitHub Copilot: Go to the Extensions marketplace in VS Code, search for "GitHub Copilot," and install it. Start your free trial.

Step 2: Start a New Project

1. Open Visual Studio Code and create a new folder for your project.
2. Create a new file (e.g., app.js for JavaScript or app.py for Python).

Step 3: Write Your First Line of Code

1. Start typing a comment about what you want to do, such as // Create a simple calculator.
2. GitHub Copilot will automatically suggest code. Press Tab to accept the suggestion.

Step 4: Build on Your Code

1. Continue with comments for each functionality you want to implement:
   • // Add two numbers
   • // Subtract two numbers
   • // Multiply two numbers
   • // Divide two numbers
2. For each comment, let Copilot generate the corresponding code.

Expected Output

After following these steps, you should have a simple calculator program that performs basic arithmetic operations, totaling around 100 lines of code.

Example Output

// Create a simple calculator
function add(a, b) {
    return a + b;
}

function subtract(a, b) {
    return a - b;
}

// ... additional functions for multiply and divide

Troubleshooting Common Issues

• Copilot isn’t suggesting code: Make sure you’re connected to the internet and Copilot is enabled in the settings.
• The suggestions aren't relevant: Try refining your comments or providing more context.

What’s Next?

Once you have your first 100 lines of code, consider these next steps:

• Debugging: Learn how to identify and fix errors in your code.
• Version Control: Familiarize yourself with Git to manage your code versions effectively.
• Expand Your Skills: Explore other coding languages or frameworks.

Conclusion: Start Here

If you’re ready to start coding, using GitHub Copilot is a fantastic way to streamline the process. Follow the steps outlined above, and you’ll be writing your first 100 lines of code in no time. Remember, the key is to practice consistently and build on what you learn.

To get the most out of your coding journey, listen to our podcast, Built This Week, where we share real experiences and tools we’re using as we build products every week.