Add eslint script and action

.github/workflows/build-test.yml

@@ -1,6 +1,6 @@
 name: NPM build + test
-
-on: [push]
+on:
+  push
 
 jobs:
   build:
@@ -26,3 +26,28 @@ jobs:
 
       - run: npm ci
       - run: npm run build
+
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        # @TODO add 16/18
+        node: [ '14' ]
+
+    name: Node ${{ matrix.node }} build
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/cache@v3
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-${{ matrix.node }}-npm-${{ hashFiles('**/package-lock.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-npm-
+      - name: Setup node
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node }}
+
+      - run: npm ci
+      - run: npm run lint
+      - run: npx vitest run

README.md

@@ -1,10 +1,19 @@
-# iiif-av-component
-
-    npm i
-    npm run build
-    npm start
-
- ## Example Manifests
-
- https://iiif-commons.github.io/iiif-av-component/examples/data/bl/sounds-tests/index.html
-
+# iiif-av-component
+
+    npm install
+    npm run build
+    npm start
+
+## Run tests
+
+    npm run test
+
+## Run eslint
+
+    npm run lint
+    npm run lint-fix
+
+## Example Manifests
+
+ https://iiif-commons.github.io/iiif-av-component/examples/data/bl/sounds-tests/index.html
+

package.json

@@ -19,7 +19,9 @@
     "prepublishOnly": "npm run build",
     "start": "npx webpack serve -c webpack.dev-server.js",
     "test": "vitest",
-    "test:reporter": "vitest --watch --reporter=dot --reporter=json --outputFile=.vitest-result.json"
+    "test:reporter": "vitest --watch --reporter=dot --reporter=json --outputFile=.vitest-result.json",
+    "lint": "eslint src/",
+    "lint-fix": "eslint --fix src/"
   },
   "repository": {
     "type": "git",