configures eslint

README.md

@@ -78,10 +78,22 @@ npm run start:server-dev
 ## 🛠️ Development Tools
 
 - **Format code**:
+
   ```bash
   npm run format
   ```
 
+- **Lint code**:
+
+  ```bash
+  npm run lint
+  ```
+
+- **Lint and fix code**:
+  ```bash
+  npm run lint:fix
+  ```
+
 ## 🏗️ Project Structure
 
 - `/src/client` - Frontend game client

eslint.config.js

@@ -0,0 +1,13 @@
+import pluginJs from "@eslint/js";
+import eslintConfigPrettier from "eslint-config-prettier/flat";
+import globals from "globals";
+import tseslint from "typescript-eslint";
+
+/** @type {import('eslint').Linter.Config[]} */
+export default [
+  { files: ["**/*.{js,mjs,cjs,ts}"] },
+  { languageOptions: { globals: { ...globals.browser, ...globals.node } } },
+  pluginJs.configs.recommended,
+  ...tseslint.configs.recommended,
+  eslintConfigPrettier,
+];

package.json

@@ -11,6 +11,8 @@
     "tunnel": "npm run build-prod && npm run start:server",
     "test": "jest",
     "format": "prettier --ignore-unknown --write .",
+    "lint": "eslint",
+    "lint:fix": "eslint --fix",
     "prepare": "husky"
   },
   "lint-staged": {
@@ -22,6 +24,7 @@
     "@babel/core": "^7.25.2",
     "@babel/preset-env": "^7.25.3",
     "@babel/preset-typescript": "^7.24.7",
+    "@eslint/js": "^9.21.0",
     "@types/chai": "^4.3.17",
     "@types/d3": "^7.4.3",
     "@types/jest": "^29.5.12",
@@ -40,7 +43,10 @@
     "concurrently": "^8.2.2",
     "cross-env": "^7.0.3",
     "css-loader": "^7.1.2",
+    "eslint": "^9.21.0",
+    "eslint-config-prettier": "^10.1.1",
     "file-loader": "^6.2.0",
+    "globals": "^16.0.0",
     "html-inline-script-webpack-plugin": "^3.2.1",
     "html-loader": "^5.1.0",
     "husky": "^9.1.7",
@@ -63,6 +69,7 @@
     "tsconfig-paths": "^4.2.0",
     "tsx": "^4.17.0",
     "typescript": "^5.7.2",
+    "typescript-eslint": "^8.26.0",
     "worker-loader": "^3.0.8"
   },
   "dependencies": {