Update dependecies and lint (#2489)

Author: shadowspawn

eslint.config.js

@@ -1,5 +1,6 @@
 import globals from 'globals';
 import esLintjs from '@eslint/js';
+import { defineConfig } from 'eslint/config';
 import tseslint from 'typescript-eslint';
 import prettier from 'eslint-config-prettier';
 
@@ -8,13 +9,13 @@ const tsconfigTsFiles = ['**/*.{ts,mts}']; // match "include" in tsconfig.ts.jso
 const tsconfigJsFiles = ['*.{js,mjs}', 'lib/**/*.{js,mjs}']; // match "include" in tsconfig.js.json
 
 // Using tseslint.config adds some type safety and `extends` to simplify customising config array.
-export default tseslint.config(
+export default defineConfig(
   // Add recommended rules.
   esLintjs.configs.recommended,
   // tseslint with different setup for js/ts
   {
     files: tsconfigJsFiles,
-    extends: [...tseslint.configs.recommended],
+    extends: [tseslint.configs.recommended],
     languageOptions: {
       parserOptions: { project: './tsconfig.js.json' },
     },
@@ -25,7 +26,7 @@ export default tseslint.config(
   },
   {
     files: tsconfigTsFiles,
-    extends: [...tseslint.configs.recommended],
+    extends: [tseslint.configs.recommended],
     languageOptions: {
       parserOptions: { project: './tsconfig.ts.json' },
     },

lib/command.js

@@ -1213,7 +1213,6 @@ Expecting one of '${allowedValues.join("', '")}'`);
 
   _executeSubCommand(subcommand, args) {
     args = args.slice();
-    let launchWithNode = false; // Use node for source targets so do not need to get permissions correct, and on Windows.
     const sourceExt = ['.js', '.ts', '.tsx', '.mjs', '.cjs'];
 
     function findFile(baseDir, baseName) {
@@ -1274,7 +1273,7 @@ Expecting one of '${allowedValues.join("', '")}'`);
       executableFile = localFile || executableFile;
     }
 
-    launchWithNode = sourceExt.includes(path.extname(executableFile));
+    const launchWithNode = sourceExt.includes(path.extname(executableFile));
 
     let proc;
     if (process.platform !== 'win32') {

lib/suggestSimilar.js

@@ -24,7 +24,7 @@ function editDistance(a, b) {
   // fill matrix
   for (let j = 1; j <= b.length; j++) {
     for (let i = 1; i <= a.length; i++) {
-      let cost = 1;
+      let cost;
       if (a[i - 1] === b[j - 1]) {
         cost = 0;
       } else {