Run 'npm i eslint eslint-plugin-react --save-dev', install proptypes, add eslintrc

Author: StuartCowley

.eslintrc.json

@@ -0,0 +1,20 @@
+{
+  "env": {
+    "browser": true,
+    "es2021": true,
+    "jest": true
+  },
+  "extends": ["eslint:recommended", "plugin:react/recommended"],
+  "parserOptions": {
+    "ecmaFeatures": {
+      "jsx": true
+    },
+    "ecmaVersion": 12,
+    "sourceType": "module"
+  },
+  "plugins": ["react"],
+  "rules": {
+    "quotes": ["error", "double"],
+    "react/require-default-props": 2
+  }
+}

package-lock.json

@@ -6,6 +6,7 @@
     "@testing-library/jest-dom": "^5.16.5",
     "@testing-library/react": "^13.4.0",
     "@testing-library/user-event": "^13.5.0",
+    "prop-types": "^15.8.1",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
     "react-scripts": "5.0.1",
@@ -34,5 +35,9 @@
       "last 1 firefox version",
       "last 1 safari version"
     ]
+  },
+  "devDependencies": {
+    "eslint": "^8.32.0",
+    "eslint-plugin-react": "^7.32.1"
   }
 }