Update eslint to v9 (#11)

eslint.config.mjs

@@ -0,0 +1,58 @@
+import importX from 'eslint-plugin-import-x';
+import jsdoc from 'eslint-plugin-jsdoc';
+import regexp from 'eslint-plugin-regexp';
+import unicorn from 'eslint-plugin-unicorn';
+import neostandard, { plugins as neostdplugins } from 'neostandard';
+import globals from 'globals';
+
+export default [
+  {
+    ignores: ['src/lib', 'src/web-ext-config.cjs']
+  },
+  jsdoc.configs['flat/recommended'],
+  regexp.configs['flat/recommended'],
+  ...neostandard({
+    semi: true
+  }),
+  {
+    plugins: {
+      '@stylistic': neostdplugins['@stylistic'],
+      'import-x': importX,
+      regexp,
+      unicorn
+    },
+    linterOptions: {
+      reportUnusedDisableDirectives: true
+    },
+    languageOptions: {
+      globals: {
+        ...globals.browser,
+        ...globals.node,
+        ...globals.webextensions
+      },
+      ecmaVersion: 'latest',
+      sourceType: 'module'
+    },
+    rules: {
+      '@stylistic/space-before-function-paren': ['error', {
+        anonymous: 'always',
+        asyncArrow: 'always',
+        named: 'never'
+      }],
+      'import-x/order': ['error', {
+        alphabetize: {
+          order: 'ignore',
+          caseInsensitive: false
+        }
+      }],
+      'no-await-in-loop': 'error',
+      'no-use-before-define': ['error', {
+        allowNamedExports: false,
+        classes: true,
+        functions: true,
+        variables: true
+      }],
+      'unicorn/prefer-node-protocol': 'error'
+    }
+  }
+];

package.json

@@ -25,13 +25,14 @@
     "@types/sinon": "^17.0.3",
     "c8": "^10.1.2",
     "chai": "^5.1.1",
-    "eslint": "^8.57.0",
-    "eslint-config-standard": "^17.1.0",
-    "eslint-plugin-import": "^2.30.0",
+    "eslint": "^9.11.1",
+    "eslint-plugin-import-x": "^4.3.0",
     "eslint-plugin-jsdoc": "^50.3.0",
     "eslint-plugin-regexp": "^2.6.0",
     "eslint-plugin-unicorn": "^55.0.0",
+    "globals": "^15.9.0",
     "mocha": "^10.7.3",
+    "neostandard": "^0.11.6",
     "npm-run-all": "^4.1.5",
     "typescript": "^5.6.2",
     "undici": "^6.19.8"

test/browser.test.js

@@ -9,7 +9,7 @@ import { afterEach, beforeEach, describe, it } from 'mocha';
 import { browser } from './mocha/setup.js';
 
 /* test */
-// eslint-disable-next-line import/order
+// eslint-disable-next-line import-x/order
 import * as mjs from '../modules/browser.js';
 
 describe('browser', () => {