Add node worklow

.github/workflows/nodejs.yml

@@ -1,4 +1,4 @@
-name: Node.js CI
+name: Node CI
 
 on: [push]
 
@@ -12,9 +12,11 @@ jobs:
     - uses: actions/setup-node@v1
       with:
         node-version: 12.x
-    - run: npm install
-    - run: npm run build
-    - run: npm run lint
-    - run: npm test
+    - name: npm install, build, and test
+      run: |
+        npm ci
+        npm run build --if-present
+        npm run lint
+        npm test
       env:
         CI: true