[Feature] Add ESLint to the project

.eslintrc.json

@@ -0,0 +1,20 @@
+{
+  "root": true,
+  "env": {
+    "commonjs": true,
+    "es2021": true,
+    "node": true,
+    "jest": true
+  },
+  "extends": "eslint:recommended",
+  "parserOptions": {
+    "ecmaVersion": "latest"
+  },
+  "rules": {
+    "no-unused-vars": ["warn", { "ignoreRestSiblings": true, "varsIgnorePattern": "^_", "argsIgnorePattern": "^_" }],
+    "no-empty": "warn",
+    "no-useless-escape": "warn",
+    "no-regex-spaces": "warn",
+    "no-prototype-builtins": "warn"
+  }
+}