Updated eslint

Author: jasonjoh

.eslintrc.json

@@ -0,0 +1,60 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
+import globals from 'globals';
+import js from '@eslint/js';
+import tsParser from '@typescript-eslint/parser';
+import eslintTypeScript from '@typescript-eslint/eslint-plugin';
+import eslintPluginPrettier from 'eslint-plugin-prettier';
+import eslintPrettierRecommended from 'eslint-plugin-prettier/recommended';
+import eslintTsDocPlugin from 'eslint-plugin-tsdoc';
+import header from 'eslint-plugin-header';
+header.rules.header.meta.schema = false;
+
+export default [
+  {
+    ignores: ['**/out'],
+  },
+  js.configs.recommended,
+  eslintPrettierRecommended,
+  {
+    files: ['**.{ts,js}'],
+
+    languageOptions: {
+      globals: {
+        ...globals.node,
+      },
+
+      parser: tsParser,
+      ecmaVersion: 'latest',
+      sourceType: 'module',
+    },
+
+    plugins: {
+      eslintTypeScript,
+      header,
+      tsdoc: eslintTsDocPlugin,
+      eslintPluginPrettier,
+    },
+
+    rules: {
+      'header/header': [
+        'error',
+        'line',
+        [
+          ' Copyright (c) Microsoft Corporation.',
+          ' Licensed under the MIT license.',
+        ],
+      ],
+      'prettier/prettier': [
+        'error',
+        {
+          singleQuote: true,
+          endOfLine: 'auto',
+          printWidth: 80,
+        },
+      ],
+      'tsdoc/syntax': 'warn',
+    },
+  },
+];