Writing and storing your code

Now you'll build the website feature you planned: a page that lists starred repositories. Along the way, you'll follow the core developer workflow—setting up a space for your work, making and saving your changes, and proposing them for review—using branches, commits, and a pull request.

Prerequisites

A local clone of your stargazers-log repository. If you haven't set this up yet, see Connecting to your code locally.

Creating a branch

A branch lets you work on your feature in its own space, without changing the main copy of your code until you're ready.

Open GitHub Desktop.
At the top of the app, click Current Branch, then click New Branch.
Name the branch add-starred-list, then click Create Branch.
Click Publish branch to make the branch available on GitHub.

Building the website's code

Your feature needs a few files: sample data, a stylesheet, a script to display the data, and an updated home page.

You can write these files yourself or ask Copilot, an AI assistant, to generate them. Every GitHub account includes access to GitHub Copilot Kostenlos and an allowance of AI credits, so you can start using Copilot right away.

To learn about the Copilot plans available and how usage works, see Pläne für GitHub Copilot.

Open Copilot-Chat in your editor and ask it to create the files with a prompt like the following.

Text

Create a starred repositories page for my software project. Add:
- events.json with sample data for a few starred repositories
- style.css to style a simple list
- script.js to fetch events.json and render the list
- an update to index.html that links style.css and script.js

Use the code written in https://docs.github.com/get-started/start-your-journey/creating-and-changing-your-code.

Create a starred repositories page for my software project. Add:
- events.json with sample data for a few starred repositories
- style.css to style a simple list
- script.js to fetch events.json and render the list
- an update to index.html that links style.css and script.js

Use the code written in https://docs.github.com/get-started/start-your-journey/creating-and-changing-your-code.

Open Copilot-Chat in VS Code

Review what Copilot generates, then adjust the files to match the examples below.

If you didn't use Copilot, use your code editor to create the files below in the add-starred-list branch.

Create a file named events.json with the following sample data. Save the file.

JSON

[
  { "name": "octocat/Hello-World", "starred": "2024-01-15" },
  { "name": "github/docs", "starred": "2024-02-02" },
  { "name": "octo-org/octo-repo", "starred": "2024-03-21" }
]

[
  { "name": "octocat/Hello-World", "starred": "2024-01-15" },
  { "name": "github/docs", "starred": "2024-02-02" },
  { "name": "octo-org/octo-repo", "starred": "2024-03-21" }
]

Create a file named style.css with the following styles. Save the file.

SCSS

body {
  font-family: sans-serif;
  margin: 2rem;
}

ul {
  list-style: none;
  padding: 0;
}

li {
  padding: 0.5rem 0;
  border-bottom: 1px solid #ddd;
}

body {
  font-family: sans-serif;
  margin: 2rem;
}

ul {
  list-style: none;
  padding: 0;
}

li {
  padding: 0.5rem 0;
  border-bottom: 1px solid #ddd;
}

Create a file named script.js with the following code. Save the file.

JavaScript

fetch("events.json")
  .then((response) => response.json())
  .then((events) => {
    const list = document.querySelector("#starred");
    events.forEach((event) => {
      const item = document.createElement("li");
      item.textContent = `${event.name} — starred ${event.starred}`;
      list.appendChild(item);
    });
  });

fetch("events.json")
  .then((response) => response.json())
  .then((events) => {
    const list = document.querySelector("#starred");
    events.forEach((event) => {
      const item = document.createElement("li");
      item.textContent = `${event.name} — starred ${event.starred}`;
      list.appendChild(item);
    });
  });

Update index.html to link the new files and hold the list. Save the file.

HTML

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>Stargazers log</title>
    <link rel="stylesheet" href="style.css">
  </head>
  <body>
    <h1>Stargazers log</h1>
    <p>A log of the repositories I've starred.</p>
    <ul id="starred"></ul>
    <script src="script.js"></script>
  </body>
</html>

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>Stargazers log</title>
    <link rel="stylesheet" href="style.css">
  </head>
  <body>
    <h1>Stargazers log</h1>
    <p>A log of the repositories I've starred.</p>
    <ul id="starred"></ul>
    <script src="script.js"></script>
  </body>
</html>

Committing and pushing your changes

Committing saves a snapshot of your changes, and pushing sends them to GitHub where they will be stored in your repository.

In GitHub Desktop, review your changed files in the left sidebar.
At the bottom of the sidebar, in the Summary field, type a commit message such as Add starred repositories list.
Click Commit 4 files to add-starred-list.
Click Push origin to send your commit to GitHub.

Opening a pull request

A pull request proposes your branch's changes for review before they merge into main.

In GitHub Desktop, click Preview Pull Request, then click Create Pull Request. Your browser opens to the pull request form on GitHub.
Review the title and description, then add a note about what your feature does.
Click Create pull request.

What you accomplished

Task	Outcome
Created a branch	You made an isolated space for your feature with `add-starred-list`.
Wrote the code	You added the feature's files to your branch, with an optional assist from Copilot-Chat.
Pushed your changes	You stored your branch's changes on GitHub.
Opened a pull request	You proposed your changes for review.

Next steps

Before you merge, review your own changes to catch issues early. Continue to Reviewing your proposed changes.

Get started

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