style: add eslint support (#121)

.eslintrc.cjs

@@ -0,0 +1,6 @@
+module.exports = {
+    extends: ['eslint:recommended', 'plugin:@typescript-eslint/recommended'],
+    parser: '@typescript-eslint/parser',
+    plugins: ['@typescript-eslint'],
+    root: true,
+  };

.vscode/extensions.json

@@ -0,0 +1,5 @@
+{
+    "recommendations": [
+        "dbaeumer.vscode-eslint"
+    ]
+}

package.json

@@ -23,10 +23,13 @@
   "devDependencies": {
     "@types/jest": "^28.1.7",
     "@types/node": "^18.8.3",
+    "@typescript-eslint/eslint-plugin": "^5.48.0",
+    "@typescript-eslint/parser": "^5.48.0",
     "esbuild": "^0.16.16",
+    "eslint": "^8.31.0",
     "jest": "^28.1.3",
     "standard-version": "^9.5.0",
     "ts-jest": "^28.0.8",
-    "typescript": "^4.8.4"
+    "typescript": "^4.9.4"
   }
 }