How to Use GitHub Copilot to Write Code Faster in 30 Minutes

In the fast-paced world of coding, saving time is everything. As indie hackers and solo founders, we often juggle multiple projects and deadlines. Enter GitHub Copilot—a tool that promises to help you write code faster. But does it deliver? In this guide, I’ll walk you through how to effectively use GitHub Copilot in just 30 minutes, sharing my experiences and insights along the way.

Prerequisites: What You Need Before Getting Started

Before diving in, make sure you have:

• A GitHub Account: You can sign up for free if you don’t have one.
• Visual Studio Code (VS Code): Download and install it if you haven’t already.
• GitHub Copilot Subscription: Costs $10/month after a 30-day free trial.

Step 1: Setting Up GitHub Copilot

1. Install the GitHub Copilot Extension:

   • Open VS Code.
   • Go to the Extensions view by clicking on the Extensions icon in the Activity Bar on the side.
   • Search for "GitHub Copilot" and click "Install".

2. Sign In:

   • After installation, you'll be prompted to sign in with your GitHub account. Follow the instructions to authenticate.

3. Activate Copilot:

   • Once signed in, Copilot will be activated automatically. You can verify it by starting to type code in a new file.

Step 2: Writing Code with Copilot

Basic Usage

• Start Typing: Begin writing a function or a comment describing what you want to accomplish. For example, type // function to calculate the sum of two numbers.
• Accept Suggestions: Copilot will suggest code snippets. You can accept a suggestion by pressing the Tab key.

Example: Building a Simple Function

Let’s say you want to create a function that calculates the factorial of a number.

1. Type the comment: // function to calculate factorial.
2. Wait for Copilot to suggest the function code.
3. Press Tab to accept the suggestion or keep typing to refine it.

Expected Output: Copilot should generate a function that looks something like this:

function factorial(n) {
    if (n === 0) return 1;
    return n * factorial(n - 1);
}

Step 3: Fine-Tuning Suggestions

Sometimes, Copilot may not get it right on the first try. Here’s how to refine its output:

• Rephrase Your Comment: If the suggestion isn’t what you expected, try rephrasing your comment or adding more context.
• Use Inline Suggestions: If you write a partial function, Copilot can often fill in the rest. You can also ask it to generate tests by typing a comment like // test for factorial function.

Troubleshooting: What Could Go Wrong

• Suggestions Aren't Relevant: This can happen if your comments are vague. Be as descriptive as possible.
• Errors in Generated Code: Always review and test the code Copilot suggests. It may not always be perfect.

What’s Next: Maximizing GitHub Copilot

Once you’re comfortable with Copilot, consider these tips to maximize its effectiveness:

• Explore Advanced Features: Look into Copilot Labs for experimental features.
• Integrate with Other Tools: Use it alongside tools like Prettier or ESLint for better code quality.
• Collaborate with Others: Share your Copilot-generated code with other developers to get feedback.

Conclusion: Start Here with GitHub Copilot

Using GitHub Copilot can significantly speed up your coding process, but remember that it’s a tool to assist, not replace your coding skills. Start with the setup, practice writing code, and refine your prompts to get the best out of it.

In our experience, it’s a great addition to our development workflow, especially for repetitive tasks or boilerplate code.

What We Actually Use: We leverage GitHub Copilot for quick prototypes and testing new ideas but always double-check the output for accuracy and security.

Ready to speed up your coding? Start using GitHub Copilot today!