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pxt-core

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Microsoft MakeCode provides Blocks / JavaScript / Python tools and editors

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# Getting started Let's start discovering GitHub by explaining a common usage scenario: you are editing your own project and using GitHub to save your changes. ### #youtube https://youtu.be/J-pI1sEWPV0 ## Step 1 - Create a repository A **repository** is used to organize a single project. Repositories will contain all the files needed for your MakeCode projects. 1. Open the [editor](@homeurl@), create a new project 2. Click on the **GitHub** button next to the **Save** button. 3. Select a good name and description (it helps with internet searches!). ### ~ hint #### Sign in If you haven't signed in yet with GitHub, you will be redirected to the GitHub sign in page. On your first use of MakeCode, you will also be asked to authorize the **Microsoft MakeCode with GitHub** app. This integrates MakeCode with GitHub using our GitHub app. Advanced users can use a [developer token](/github/token) so that they can work directly with GitHub without having to sign in with the app. If you don't already have a GitHub account, you will need to [sign up](/github/sign-up) for one first. ### ~ ## Step 2 - Make code changes Go ahead and make some changes to the code in your project. ## Step 3 - Review your changes Make any change in the code editor and you will notice that an up arrow is displayed on the **GitHub** button. The arrow means that there are changes stored on your computer and they need to get saved to GitHub. Click on that button to open the **GitHub view**. You will see the list of modified files and their differences, or **diffs**. A **diff** is common jargon used by developers to describe a formatted display of differences between two pieces of text (read about using [diffs](/github/diff)). Look at the diff carefully, it tells you which lines you added, deleted or modified. ### ~ hint #### Reverting local changes If you do not like some of your changes, you can click on the **Revert** button next to the modified file. It allows you to undo all the changes in that file and roll it back to the content in the previous commit. ### ~ ## Step 4 - Commit & push changes Click on the **commit & push changes** button to save these changes to GitHub. This will create a new **commit** in your repository. A **commit** is a bundled set of changes that can be uploaded to GitHub (read more about [commits](/github/commit)). That's it! Each time you want to keep a set of changes to your code, repeat steps 2, 3, and 4!