sample node ci/cd config

nodejs.yml

name: Node CI

on: [push]

jobs:
  build:
    name: Test on node ${{ matrix.node_version }} and ${{ matrix.os }}
    runs-on: ubuntu-latest
    strategy:
      matrix:
        node_version: [8, 10, 12]
        os: [ubuntu-latest]
    steps:
      - uses: actions/checkout@master
      - name: Use Node.js ${{ matrix.node_version }}
        uses: actions/setup-node@v1
        with:
          version: ${{ matrix.node_version }}
      - name: npm install, build, and test
        run: |
          npm install
          npm test

this file goes in .github/workflows/nodejs.yml