add eslint and eslint-plugin-react

Author: dev-javascript

.eslintrc.json

@@ -0,0 +1,18 @@
+{
+  "env": {
+    "browser": true,
+    "es2021": true,
+    "node": true,
+    "jest": true
+  },
+  "extends": ["eslint:recommended", "plugin:react/recommended"],
+  "parserOptions": {
+    "ecmaFeatures": {
+      "jsx": true
+    },
+    "ecmaVersion": 12,
+    "sourceType": "module"
+  },
+  "plugins": ["react"],
+  "rules": {}
+}