Updated eslint config & prepared ts config

.eslintrc.json

@@ -1,18 +1,14 @@
 {
 	"root": true,
 	"parserOptions": {
-		// "parser": "@typescript-eslint/parser",
 		"sourceType": "module"
 	},
-	// "plugins": ["@typescript-eslint"],
 	"extends": [
 		"eslint-config-airbnb-base",
-		// "plugin:@typescript-eslint/recommended",
 		"plugin:prettier/recommended"
 	],
 	"rules": {
 		"no-underscore-dangle": "off",
 		"no-shadow": "off"
-		// "@typescript-eslint/no-shadow": ["error"]
 	}
 }

.eslintrc.ts.json

@@ -0,0 +1,18 @@
+{
+	"root": true,
+	"parserOptions": {
+		"parser": "@typescript-eslint/parser",
+		"sourceType": "module"
+	},
+	"plugins": ["@typescript-eslint"],
+	"extends": [
+		"eslint-config-airbnb-base",
+		"plugin:@typescript-eslint/recommended",
+		"plugin:prettier/recommended"
+	],
+	"rules": {
+		"no-underscore-dangle": "off",
+		"no-shadow": "off",
+		"@typescript-eslint/no-shadow": ["error"]
+	}
+}

package.json

@@ -44,15 +44,17 @@
     "@types/node": "^12.6.8",
     "coveralls": "^3.0.5",
     "documentation": "^12.0.3",
-    "eslint": "^4.9.0",
-    "eslint-config-airbnb-base": "^12.1.0",
+    "eslint": "^8.22.0",
+    "eslint-config-airbnb-base": "^15.0.0",
+    "eslint-config-prettier": "^8.5.0",
     "eslint-plugin-import": "^2.8.0",
+    "eslint-plugin-prettier": "^4.2.1",
     "istanbul": "^0.4.5",
     "mocha": "^6.2.0",
     "mocha-lcov-reporter": "^1.3.0",
     "nyc": "^11.6.0",
+    "prettier": "^2.7.1",
     "supertest": "^3.0.0",
-    "supertest-as-promised": "^4.0.1",
-    "typescript": "^3.5.3"
+    "supertest-as-promised": "^4.0.1"
   }
 }