frontend: Enable linting

Author: Bastien Abadie

frontend/.eslintrc.yml

@@ -0,0 +1,14 @@
+env:
+  browser: true
+  es6: true
+extends:
+  - google
+globals:
+  Atomics: readonly
+  SharedArrayBuffer: readonly
+parserOptions:
+  ecmaVersion: 2018
+  sourceType: module
+rules:
+  require-jsdoc: off
+  max-len: [warn, {code: 120}]

frontend/package.json

@@ -27,6 +27,9 @@
     "babel-polyfill": "^6.26.0",
     "clean-webpack-plugin": "^3.0.0",
     "css-loader": "^3.0.0",
+    "eslint": "^6.2.2",
+    "eslint-config-google": "^0.13.0",
+    "eslint-loader": "^3.0.0",
     "html-webpack-plugin": "^3.2.0",
     "mini-css-extract-plugin": "^0.8.0",
     "optimize-css-assets-webpack-plugin": "^5.0.3",