add linters

.eslintrc.json

@@ -0,0 +1,13 @@
+{
+  "env": {
+    "browser": true,
+    "es2021": true,
+    "node": true
+  },
+  "extends": ["eslint:recommended", "prettier"],
+  "parserOptions": {
+    "ecmaVersion": "latest",
+    "sourceType": "module"
+  },
+  "rules": {}
+}

package.json

@@ -24,13 +24,16 @@
     "chai": "^4.3.4",
     "chai-as-promised": "^7.1.1",
     "docdash": "^1.2.0",
-    "jsdoc": "^3.6.10",
+    "eslint": "^8.49.0",
+    "eslint-config-prettier": "^9.0.0",
+    "jsdoc": "^4.0.2",
     "karma": "^6.3.9",
     "karma-chrome-launcher": "^3.1.0",
     "karma-firefox-launcher": "^2.1.2",
     "karma-mocha": "^2.0.1",
     "karma-webpack": "^5.0.0",
     "mocha": "^9.1.3",
+    "prettier": "3.0.3",
     "webpack": "^5.64.1",
     "webpack-cli": "^4.9.1"
   },