How to Use GitHub Copilot in VS Code: A Beginner's Guide

Originally published on CodingCush.

To use GitHub Copilot in VS Code, install the GitHub Copilot extension from the VS Code Marketplace, sign in with your GitHub account, and then simply start typing: Copilot suggests whole lines and functions in grey "ghost text", which you accept with Tab, reject with Escape, or browse with Alt+] for the next suggestion. Beyond autocomplete, the Copilot Chat panel lets you ask questions, explain selected code and generate small pieces of code in conversation. It works best when you treat it as a fast junior partner whose work you always review, not as an autopilot you stop watching.

What Copilot Is, in One Honest Paragraph

Copilot is an AI coding assistant built by GitHub and OpenAI, trained on a huge amount of public code, that predicts what you are likely to write next from the context of your file, your comments and your project. The official GitHub Copilot page calls it an AI accelerator for every workflow, from the editor to the enterprise. In daily beginner terms, it is autocomplete that grew up: instead of finishing one word, it finishes the line, the loop or the whole small function, and it is right often enough to be genuinely useful and wrong often enough that you must keep reading its suggestions.

The official GitHub Copilot page on github.com, showing "Command your craft" and its Copilot in VS Code section.

Step 1: Install and Sign In

Open VS Code, go to the Extensions view, search for "GitHub Copilot" and install the official extension published by GitHub; the Copilot Chat extension is included with it in current versions. After installing, VS Code asks you to sign in with GitHub: your browser opens, you approve, and you return to the editor signed in. You need a Copilot plan to use it fully: there is a limited free plan that is enough to learn on, paid plans for individuals, and free access for verified students through GitHub Education, which is worth claiming if you have a student email. A small Copilot icon in the status bar confirms it is active, and clicking it lets you pause it for a file or entirely, which is a polite habit when you are deliberately practising without help.

Step 2: The Four Moves You Will Use All Day

// Move 1: write a clear comment, press Enter, let Copilot draft it
// function that returns the total price including 18% tax

// Move 2: start the code yourself and accept the ghost text with Tab
function calculateTotal(price) {   // Copilot suggests the body here

// Move 3: press Alt+] / Alt+[ to cycle alternative suggestions
// Move 4: select code, open Chat, and type: /explain

Almost everything beginners do with Copilot is one of these four moves. The comment-first move is the most powerful: a precise comment like "function that validates an email and returns true or false" produces far better suggestions than a vague one, because you are really writing a tiny specification. The cycle move is the one beginners discover last: when the first suggestion is close but not right, do not delete and retype; ask for the next suggestion first. And the chat move turns Copilot from a typist into a tutor, especially with the built-in slash commands such as /explain for selected code and /fix for an error.

Step 3: Use Copilot Chat Like a Patient Senior

Select any confusing block, open Chat and ask what it does; ask why your code throws a specific error, pasting the error text; or ask it to write the boring test cases for a function you just finished. This conversational use is where beginners gain the most, because it explains as it helps. If you already use chatbots for programming help, our comparison of GitHub Copilot vs ChatGPT for coding shows where each tool wins: Copilot lives inside your editor and sees your file, while a chatbot is better for long explanations and planning away from the code. Many developers end up using both, for different moments of the same task.

For the moments when the code is simply broken, our prompt templates in how to debug code with AI: prompts that actually fix errors work beautifully inside Copilot Chat too: paste the error, state what you expected, and ask for the smallest possible change. The discipline is the same everywhere: one clear question, one small answer, then you run the code and see for yourself.

Rules for Not Letting Copilot Make You Worse

The pattern behind the table is simple: Copilot is excellent at the parts of programming that are patterns, and careless at the parts that are judgement. It will happily suggest a function that works for the normal case and fails on empty input, or an outdated way of doing something it saw often in old code. The official Copilot documentation on GitHub Docs says the same thing in formal language: you are responsible for the code you ship, and you should verify suggestions, especially for security-sensitive work. Reviewing is not distrust; it is literally the senior developer's job, and Copilot makes you the senior from day one.

A Realistic Beginner Workflow

Here is how a healthy small session looks. You are building a to-do list in JavaScript. You write the HTML yourself. In the script file, you comment "array to hold tasks, and a function to render them" and let Copilot draft the rendering loop, reading it line by line and fixing one variable name. You write the add-task function alone, slowly, because that is the skill you are learning this week. Then you ask Chat to generate five test cases for your validation function and to explain the one failure you did not expect. You finish having typed less boilerplate, learned one new pattern from a suggestion you studied, and understood everything in the file. That balance, help on the repetitive, ownership of the important, is the workflow that makes Copilot a teacher instead of a crutch.

Frequently Asked Questions

Is GitHub Copilot free for beginners?

There is a limited free plan with a monthly allowance of completions and chat messages, which is enough to learn whether it suits you. Verified students can get broader free access through GitHub Education, and paid plans remove the limits.

Which languages does Copilot work with in VS Code?

It works across the popular languages VS Code supports, including JavaScript, TypeScript, Python, PHP, Java, C# and many more. Suggestions are usually strongest in widely used languages, because it has seen more public code in them.

Does Copilot write whole projects for you?

No, and you should be suspicious of anyone who says otherwise. It suggests lines, functions and small blocks inside the file you are editing. Planning the project, connecting the parts and testing the result remain your work.

Can using Copilot stop me from learning to code?

Only if you accept code you do not understand. If you read suggestions, ask Chat to explain them and still write core logic yourself regularly, Copilot speeds up learning by showing you patterns in context.

Why is Copilot not suggesting anything?

Check the status bar icon to confirm you are signed in and Copilot is enabled for that file type, confirm your plan has not hit its monthly limit, and try a comment describing the function: suggestions need a little context to work with.

Conclusion

Install the extension, sign in, and learn four moves: comment first, accept with Tab, cycle with Alt+], and ask Chat to explain. Then hold one rule above all others: never ship a suggestion you could not explain. Used that way, Copilot removes the typing from programming and leaves you the thinking, which is the part worth learning anyway.