Allow unused _ variable in Typescript

eslint.config.js

@@ -5,6 +5,7 @@ import globals from 'globals';
 import { fileURLToPath } from 'node:url';
 import ts from 'typescript-eslint';
 import svelteConfig from './svelte.config.js';
+
 const gitignorePath = fileURLToPath(new URL("./.gitignore", import.meta.url));
 
 export default ts.config(
@@ -14,23 +15,32 @@ export default ts.config(
   ...svelte.configs.recommended,
   {
     languageOptions: {
-	  globals: {
-	    ...globals.browser,
-	    ...globals.node
-	  }
-	}
+      globals: {
+        ...globals.browser,
+        ...globals.node
+      }
+    }
   },
   {
     files: ["**/*.svelte", "**/*.svelte.ts", "**/*.svelte.js"],
     ignores: ["eslint.config.js", "svelte.config.js"],
 
     languageOptions: {
-	  parserOptions: {
-	    projectService: true,
-	    extraFileExtensions: ['.svelte'],
-	    parser: ts.parser,
-	    svelteConfig
-	  }
-	}
+      parserOptions: {
+        projectService: true,
+        extraFileExtensions: ['.svelte'],
+        parser: ts.parser,
+        svelteConfig
+      }
+    },
+    rules: {
+      "@typescript-eslint/no-unused-vars": [
+        "error",
+        {
+          "varsIgnorePattern": "^_",
+          "argsIgnorePattern": "^_"
+        }
+      ]
+    }
   }
 );