Add TypeScript rules

Author: Maximization

README.md

@@ -37,11 +37,39 @@ In your `.eslintrc` configuration file:
 ```js
 module.exports = {
   plugins: [
-    'eslint-plugin-node',
+    'eslint-plugin-node'
   ],
   extends: [
     'async',
     'async/node'
   ],
 };
 ```
+
+### Base rules + Node.js specific rules + TypeScript rules (recommended for TypeScript users)
+Install this package and its peer dependencies:
+
+```shell
+npm install --save-dev eslint eslint-config-async eslint-plugin-node typescript @typescript-eslint/parser @typescript-eslint/eslint-plugin
+```
+
+In your `.eslintrc` configuration file:
+
+```js
+module.exports = {
+  plugins: [
+    'eslint-plugin-node',
+    '@typescript-eslint'
+  ],
+  extends: [
+    'async',
+    'async/node',
+    'async/typescript'
+  ],
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    tsconfigRootDir: __dirname,
+    project: ['./tsconfig.json'],
+  }
+};
+```

package.json

@@ -23,6 +23,9 @@
   },
   "peerDependencies": {
     "eslint": ">=8.11.0",
-    "eslint-plugin-node": ">=11.1.0"
+    "eslint-plugin-node": ">=11.1.0",
+    "typescript": "*",
+    "@typescript-eslint/parser": "^5.0.0",
+    "@typescript-eslint/eslint-plugin": "^5.0.0"
   }
 }

typescript.js

@@ -0,0 +1,9 @@
+module.exports = {
+  rules: {
+    // TypeScript rules
+    "@typescript-eslint/await-thenable": "error",
+    "@typescript-eslint/no-floating-promises": "error",
+    "@typescript-eslint/no-misused-promises": "error",
+    "@typescript-eslint/promise-function-async": "error",
+  },
+};