Svelte conversion — quick and dirty

eslint.config.js

@@ -1,28 +1,26 @@
-import prettierConfig from 'eslint-config-prettier/flat'
+import eslint from '@eslint/js';
+import tseslint from 'typescript-eslint';
+import prettierConfig from 'eslint-config-prettier/flat';
 
 export default [
-    {
-        files: ['src/**/*.js'],
-        languageOptions: {
-            ecmaVersion: 'latest',
-            sourceType: 'script',
-            globals: {
-                window: 'readonly',
-                document: 'readonly',
-                dataLayer: 'writable'
-            }
-        },
-        rules: {
-            'no-undef': 'warn',
-            'no-unused-vars': ['warn', { argsIgnorePattern: '^_' }],
-            'no-var': 'warn',
-            'prefer-arrow-callback': 'warn',
-            'prefer-const': 'warn',
-            'prefer-destructuring': 'warn',
-            'prefer-rest-params': 'warn',
-            'prefer-spread': 'warn',
-            'prefer-template': 'warn',
-        }
-    },
-    prettierConfig
-]
+	{ ignores: ['**/*.d.ts'] },
+	eslint.configs.recommended,
+	...tseslint.configs.recommended,
+	{
+		files: ['src/**/*.ts', 'src/**/*.js'],
+		languageOptions: {
+			ecmaVersion: 'latest',
+			sourceType: 'module',
+			globals: {
+				window: 'readonly',
+				document: 'readonly'
+			}
+		},
+		rules: {
+			'no-unused-vars': 'off',
+			'@typescript-eslint/no-unused-vars': ['warn', { argsIgnorePattern: '^_' }],
+			'prefer-const': 'warn'
+		}
+	},
+	prettierConfig
+];