fix the eslint config and script

Author: NShahri

.eslintignore

@@ -0,0 +1,18 @@
+import js from '@eslint/js';
+import globals from 'globals';
+import tseslint from 'typescript-eslint';
+import eslintConfigPrettier from 'eslint-config-prettier';
+import eslintPluginPrettierRecommended from 'eslint-plugin-prettier/recommended';
+import { defineConfig } from 'eslint/config';
+
+export default defineConfig([
+  {
+    files: ['**/*.{js,mjs,cjs,ts,mts,cts}'],
+    plugins: { js },
+    extends: ['js/recommended'],
+    languageOptions: { globals: { ...globals.browser, ...globals.node } },
+  },
+  tseslint.configs.recommended,
+  eslintConfigPrettier,
+  eslintPluginPrettierRecommended,
+]);

.eslintrc

@@ -23,11 +23,7 @@
   "scripts": {
     "test": "npm run lint && npm run check && npm run testonly",
     "test:ci": "npm run lint && npm run check && npm run testonly -- --coverage",
-    "lint": "eslint .",
-    "check": "flow check --max-warnings 0",
-    "build": "babel src --ignore src/__tests__ --out-dir dist/ ; cp src/index.js dist/index.js.flow ; cp src/index.d.ts dist/",
-    "watch": "babel resources/watch.js | node",
-    "testonly": "jest src",
+    "lint": "eslint ./src --ext .js,.ts",
     "check": "tsc --noEmit --pretty",
     "build": "tsup",
     "watch": "tsup --watch",

eslint.config.ts

@@ -0,0 +1,36 @@
+{
+  // Visit https://aka.ms/tsconfig to read more about this file
+  "compilerOptions": {
+    // Environment Settings
+    // See also https://aka.ms/tsconfig/module
+    "module": "nodenext",
+    "target": "esnext",
+    "types": ["node"],
+
+    // Other Outputs
+    "sourceMap": true,
+    "declaration": true,
+    "declarationMap": true,
+
+    // Stricter Typechecking Options
+    "noUncheckedIndexedAccess": true,
+    "exactOptionalPropertyTypes": true,
+
+    // Style Options
+    "noImplicitReturns": true,
+    "noImplicitOverride": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noFallthroughCasesInSwitch": true,
+    "noPropertyAccessFromIndexSignature": true,
+
+    // Recommended Options
+    "strict": true,
+    //    "verbatimModuleSyntax": true,
+    "isolatedModules": true,
+    "noUncheckedSideEffectImports": true,
+    "moduleDetection": "force",
+    "skipLibCheck": true,
+    "allowImportingTsExtensions": true
+  }
+}