Add ESLint configuration for JavaScript files

Author: Jason2866

eslint.config.js

@@ -0,0 +1,73 @@
+import js from '@eslint/js';
+import importPlugin from 'eslint-plugin-import';
+
+export default [
+  js.configs.recommended,
+  importPlugin.flatConfigs.recommended,
+  {
+    files: ['**/*.js'],
+    languageOptions: {
+      ecmaVersion: 13,
+      sourceType: 'module',
+      globals: {
+        atom: true,
+        document: false,
+        escape: false,
+        navigator: false,
+        unescape: false,
+        window: false,
+        PACKAGE_VERSION: false,
+        // Node.js globals
+        process: 'readonly',
+        Buffer: 'readonly',
+        __dirname: 'readonly',
+        __filename: 'readonly',
+        module: 'readonly',
+        require: 'readonly',
+        exports: 'readonly',
+        global: 'readonly',
+        console: 'readonly'
+      }
+    },
+    settings: {
+      'import/resolver': {
+        webpack: {
+          config: {
+            resolve: {
+              extensions: ['.js']
+            }
+          }
+        }
+      }
+    },
+    rules: {
+      'curly': ['warn', 'all'],
+      'linebreak-style': ['error', 'unix'],
+      'no-console': [
+        'error',
+        {
+          allow: ['warn', 'error', 'info']
+        }
+      ],
+      'prefer-const': 'error',
+      'quotes': ['error', 'single', 'avoid-escape'],
+      'semi': ['error', 'always'],
+      'sort-imports': [
+        'warn',
+        {
+          ignoreCase: false,
+          ignoreMemberSort: false,
+          memberSyntaxSortOrder: ['none', 'all', 'multiple', 'single']
+        }
+      ],
+      'no-useless-escape': 'off',
+      'no-empty': [
+        'warn',
+        {
+          allowEmptyCatch: true
+        }
+      ],
+      'require-atomic-updates': 'off'
+    }
+  }
+];