Add eslint with friends

.babelrc

-{
-  "presets": [
-    "@babel/preset-env",
-    "@babel/preset-react"
-  ],
-  "plugins": [
-    "@babel/plugin-proposal-class-properties"
-  ]
-}
\ No newline at end of file

.eslintrc

+{
+  "parser": "babel-eslint",
+  "extends": [
+    "airbnb"
+  ],
+  "rules": {
+    "indent": [
+      "error",
+      4,
+      {
+        "SwitchCase": 1
+      }
+    ],
+    "react/jsx-indent-props": [
+      "error",
+      4
+    ],
+    "react/jsx-indent": [
+      "error",
+      4
+    ],
+    "object-curly-spacing": [
+      "error",
+      "never"
+    ],
+    "max-len": [
+      "error",
+      120
+    ],
+    "react/jsx-tag-spacing": [
+      "error",
+      {
+        "closingSlash": "never",
+        "beforeSelfClosing": "never"
+      }
+    ],
+    "react/forbid-prop-types": [
+      "error",
+      {
+        "forbid": [
+          "any",
+          "array"
+        ]
+      }
+    ],
+    "no-underscore-dangle": [
+      "error",
+      {
+        "allow": [
+          "_id"
+        ]
+      }
+    ],
+    "linebreak-style": 0
+  }
+}
\ No newline at end of file

babel.config.js

+module.exports = function (api) {
+    api.cache(true);
+
+    const presets = [
+        '@babel/preset-env',
+        '@babel/preset-react',
+    ];
+    const plugins = [
+        '@babel/plugin-proposal-class-properties',
+    ];
+
+    return {
+        presets,
+        plugins,
+    };
+};

package.json

@@ -5,7 +5,8 @@
   "main": "index.js",
   "scripts": {
     "webpack": "webpack",
-    "start": "webpack-dev-server"
+    "start": "webpack-dev-server",
+    "eslint": "eslint src/**/*.jsx"
   },
   "repository": {
     "type": "git",
@@ -40,7 +41,13 @@
     "@babel/plugin-proposal-class-properties": "^7.1.0",
     "@babel/preset-env": "^7.1.0",
     "@babel/preset-react": "^7.0.0",
+    "babel-eslint": "^10.0.1",
     "babel-loader": "^8.0.2",
+    "eslint": "^5.9.0",
+    "eslint-config-airbnb": "^17.1.0",
+    "eslint-plugin-import": "^2.14.0",
+    "eslint-plugin-jsx-a11y": "^6.1.2",
+    "eslint-plugin-react": "^7.11.1",
     "prop-types": "^15.6.2",
     "react": "^16.5.2",
     "react-dnd": "^2.5.4",