This action checks out your repository so that your workflow operates from the root of the repository

By default, this is equivalent to running git fetch and git checkout $GITHUB_SHA, so that you'll always have your repo contents at the version that triggered the workflow. See here to learn what $GITHUB_SHA is for different kinds of events.

See action.yml

Basic:

steps:
- uses: actions/checkout@master
- uses: actions/setup-node@master
  with:
    node-version: 10.x 
- run: npm install
- run: npm test

The scripts and documentation in this project are released under the MIT License