added eslint

.eslintrc.json

@@ -0,0 +1,42 @@
+{
+	"env": {
+		"node": true,
+		"commonjs": true,
+		"es6": true
+	},
+	"parserOptions": {
+		"ecmaVersion": 2020
+	},
+	"extends": "eslint:recommended",
+	"rules": {
+		"require-atomic-updates": "warn",
+		"no-case-declarations": "off",
+		"no-empty": "off",
+		"no-console": "off",
+		"linebreak-style": "off",
+		"no-global-assign": "off",
+		"prefer-const": "error",
+		"no-var": "error",
+		"no-unused-vars": "error",
+		"no-extra-semi": "error",
+		"one-var": [
+			"error",
+			"never"
+		],
+		"indent": [
+			"error",
+			"tab",
+			{
+				"SwitchCase": 1
+			}
+		],
+		"quotes": [
+			"error",
+			"single"
+		],
+		"semi": [
+			"error",
+			"always"
+		]
+	}
+}

package.json

@@ -9,5 +9,8 @@
     "@colors/colors": "^1.6.0",
     "node-forge": "^1.3.1",
     "prompt": "^1.3.0"
+  },
+  "devDependencies": {
+    "eslint": "^8.56.0"
   }
 }