Move to TypeScript

Author: axelrindle

.eslintrc.json

@@ -1,14 +1,24 @@
 {
-    "env": {
-        "commonjs": true,
-        "es2020": true,
-        "node": true
-    },
-    "extends": "eslint:recommended",
-    "parserOptions": {
-        "ecmaVersion": 11
-    },
+    "extends": [
+        "eslint:recommended",
+        "plugin:@typescript-eslint/recommended"
+    ],
+    "parser": "@typescript-eslint/parser",
+    "plugins": [
+        "@typescript-eslint"
+    ],
+    "root": true,
     "rules": {
-        "quotes": [ "warn", "single" ]
+        "quotes": [
+            "error",
+            "single"
+        ],
+        "no-unused-vars": "off",
+        "@typescript-eslint/no-unused-vars": [
+            "error",
+            {
+                "argsIgnorePattern": "^_"
+            }
+        ]
     }
 }