Add parameter validation and refactor code to reduce duplication

eslint.config.js

@@ -0,0 +1,85 @@
+module.exports = {
+  languageOptions: {
+    ecmaVersion: 12,
+    sourceType: "module",
+    globals: {
+      Atomics: "readonly",
+      SharedArrayBuffer: "readonly",
+      process: "readonly",
+      require: "readonly",
+      module: "readonly",
+      console: "readonly",
+      __dirname: "readonly"
+    }
+  },
+  rules: {
+    // Existing rules
+    indent: ["error", 2],
+    "linebreak-style": ["error", "unix"],
+    quotes: ["error", "single"],
+    semi: ["error", "always"],
+    // Added "eslint:recommended" rules
+    "array-callback-return": "error",
+    "constructor-super": "error",
+    "for-direction": "error",
+    "getter-return": "error",
+    "no-async-promise-executor": "error",
+    "no-await-in-loop": "error",
+    "no-class-assign": "error",
+    "no-compare-neg-zero": "error",
+    "no-cond-assign": "error",
+    "no-const-assign": "error",
+    "no-constant-binary-expression": "error",
+    "no-constant-condition": "error",
+    "no-constructor-return": "error",
+    "no-control-regex": "error",
+    "no-debugger": "error",
+    "no-dupe-args": "error",
+    "no-dupe-class-members": "error",
+    "no-dupe-else-if": "error",
+    "no-dupe-keys": "error",
+    "no-duplicate-case": "error",
+    "no-duplicate-imports": "error",
+    "no-empty-character-class": "error",
+    "no-empty-pattern": "error",
+    "no-ex-assign": "error",
+    "no-fallthrough": "error",
+    "no-func-assign": "error",
+    "no-import-assign": "error",
+    "no-inner-declarations": "error",
+    "no-invalid-regexp": "error",
+    "no-irregular-whitespace": "error",
+    // Additional "eslint:recommended" rules
+    "no-loss-of-precision": "error",
+    "no-misleading-character-class": "error",
+    "no-new-symbol": "error",
+    "no-obj-calls": "error",
+    "no-octal": "error",
+    "no-prototype-builtins": "error",
+    "no-redeclare": "error",
+    "no-regex-spaces": "error",
+    "no-self-assign": "error",
+    "no-setter-return": "error",
+    "no-shadow-restricted-names": "error",
+    "no-sparse-arrays": "error",
+    "no-this-before-super": "error",
+    "no-undef": "error",
+    "no-unexpected-multiline": "error",
+    "no-unreachable": "error",
+    "no-unsafe-finally": "error",
+    "no-unsafe-negation": "error",
+    "no-unused-labels": "error",
+    "no-unused-vars": "error",
+    "no-useless-catch": "error",
+    "no-useless-escape": "error",
+    "no-with": "error",
+    "require-atomic-updates": "error",
+    "require-yield": "error",
+    "use-isnan": "error",
+    "valid-typeof": "error",
+    // ... additional rules as identified from the ESLint documentation
+    "accessor-pairs": "error",
+    "unicode-bom": "error",
+    // ... continue adding any remaining rules
+  },
+};