What is actions/checkout@v2 in Github action?

[karenworld]

Hi,
I tried to search for an answer about ```
actions/checkout@v2

Can someone explains thing abit to me? Tks.

[mcaskill]

It is an official GitHub Action used to check-out a repository so a workflow can access it.

  <a href="https://github.com/actions/checkout" target="_blank" rel="noopener nofollow ugc">GitHub</a>

actions/checkout

Action for checking out a repo. Contribute to actions/checkout development by creating an account on GitHub.

By default, this action will check-out to the SHA for that workflow’s event (such as push and pull_request). Otherwise, uses the default branch (usually main or master in a standard repository).