Fix linting

.eslintrc.json

@@ -5,7 +5,7 @@
         "node": true
     },
     "parserOptions": {
-        "ecmaVersion": 6
+        "ecmaVersion": 8
     },
     "rules": {
         "block-spacing": "error",
@@ -18,6 +18,10 @@
         "quotes": ["error", "single"],
         "semi": "error",
         "space-before-blocks": "error",
-        "space-before-function-paren": ["error", "never"]
+        "space-before-function-paren": ["error", {
+            "anonymous": "never",
+            "named": "never",
+            "asyncArrow": "always"
+        }]
     }
 }

.github/workflows/test.yml

@@ -35,6 +35,9 @@ jobs:
         env:
           SHELL: "/bin/bash"
 
+      - name: Lint
+        run: npm run lint
+
       - name: Submit coverage
         uses: coverallsapp/github-action@master
         with:

src/concurrently.js

@@ -55,11 +55,11 @@ module.exports = (commands, options) => {
             return {
                 commands,
                 onFinishCallbacks: _.concat(onFinishCallbacks, onFinish ? [onFinish] : [])
-            }
+            };
         },
         { commands, onFinishCallbacks: [] }
     );
-    commands = handleResult.commands
+    commands = handleResult.commands;
 
     const commandsLeft = commands.slice();
     const maxProcesses = Math.max(1, Number(options.maxProcesses) || commandsLeft.length);

src/concurrently.spec.js

@@ -183,4 +183,4 @@ it('runs onFinish hook after all commands run', async () => {
 
     expect(controllers[0].onFinish).toHaveBeenCalled();
     expect(controllers[1].onFinish).toHaveBeenCalled();
-})
+});

src/flow-control/fixtures/fake-handler.js

@@ -1,4 +1,4 @@
-const BaseHandler = require('../base-handler')
+const BaseHandler = require('../base-handler');
 
 module.exports = class FakeHandler extends BaseHandler {
     constructor() {