How to Build Your First App Using GitHub Copilot in 1 Hour

Building your first app can feel overwhelming, especially if you're staring at a blank screen and wondering where to start. The good news is that with tools like GitHub Copilot, you can significantly reduce the time and effort required to get an MVP off the ground. In this guide, I'll walk you through how to leverage GitHub Copilot to build your first app in just one hour.

Prerequisites

Before we dive in, here’s what you’ll need:

• GitHub Account: Sign up for free if you don’t have one.
• Visual Studio Code: Download and install this code editor if you haven't already.
• GitHub Copilot: You’ll need a subscription, which costs $10/mo after a 60-day free trial.
• Basic understanding of JavaScript: Familiarity with JavaScript will help, but Copilot can assist even if you're a beginner.

Step 1: Setup Your Environment (10 minutes)

1. Install Visual Studio Code: Go to the official site and download the latest version.
2. Install GitHub Copilot: In Visual Studio Code, go to Extensions (Ctrl+Shift+X), search for "GitHub Copilot," and install it.
3. Sign in to GitHub: After installation, you'll be prompted to sign in to your GitHub account to activate Copilot.

Expected Output: You should have Visual Studio Code open with GitHub Copilot activated.

Step 2: Create a New Project (10 minutes)

1. Open a new folder in Visual Studio Code.
2. Create an index.html file: This will be your main HTML file.
3. Create a script.js file: This will hold your JavaScript code.

Expected Output: You should see two files in your project directory.

Step 3: Write Your First Code with Copilot (30 minutes)

Here’s where the magic happens.

1. HTML Structure: Start by typing the basic HTML structure in index.html. As you type, Copilot will suggest completions. Accept the suggestions by hitting Tab.

   <!DOCTYPE html>
   <html lang="en">
   <head>
       <meta charset="UTF-8">
       <meta name="viewport" content="width=device-width, initial-scale=1.0">
       <title>My First App</title>
   </head>
   <body>
       <h1>Hello, World!</h1>
       <button id="myButton">Click Me!</button>
       <script src="script.js"></script>
   </body>
   </html>
   

2. JavaScript Functionality: In script.js, start by typing a comment like // Add click event to button. Copilot will suggest the necessary code to add an event listener.

   const button = document.getElementById('myButton');
   button.addEventListener('click', () => {
       alert('Button was clicked!');
   });
   

Expected Output: When you open index.html in the browser and click the button, you should see an alert pop up.

Troubleshooting: What Could Go Wrong?

1. Copilot Not Suggesting Code: Make sure you’re logged into GitHub and that the Copilot extension is enabled.
2. Button Doesn't Work: Check your console for errors and ensure your JavaScript file is linked correctly in the HTML.

What's Next?

Now that you've built your first app, consider enhancing it with more features like:

• Adding CSS for styling.
• Integrating a simple API to fetch data.
• Deploying your app using services like Vercel or Netlify.

Conclusion: Start Here

If you’re looking to quickly build a functional app, GitHub Copilot is an excellent tool to help you along the way. With just an hour, you can go from zero to a clickable app.

Remember, while Copilot can speed up your coding, it’s still essential to understand the code it generates. Use this experience as a stepping stone to refine your skills further.

What We Actually Use

For our own projects, we rely heavily on GitHub Copilot for generating boilerplate code and speeding up repetitive tasks. It’s not perfect, but it’s a solid tool for getting started quickly.