#305: eslint

Author: yegor256

.github/workflows/eslint.yml

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+# SPDX-FileCopyrightText: Copyright (c) 2015-2025 Yegor Bugayenko
+# SPDX-License-Identifier: MIT
+---
+# yamllint disable rule:line-length
+name: eslint
+'on':
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+jobs:
+  eslint:
+    timeout-minutes: 15
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: npm install -g eslint@9.17.0
+      - run: npm install @eslint/js
+      - run: eslint

eslint.config.js

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+/*
+ * SPDX-FileCopyrightText: Copyright (c) 2015-2025 Yegor Bugayenko
+ * SPDX-License-Identifier: MIT
+ */
+
+const { configs } = require('@eslint/js');
+
+module.exports = [
+  {
+    ...configs.all,
+    files: ['**/*.js'],
+    ignores: ['node_modules/'],
+    languageOptions: {
+      ecmaVersion: 2019,
+      sourceType: 'module'
+    },
+    rules: {
+      ...configs.all.rules,
+      'indent': ['error', 2],
+      'max-len': ['error', { code: 200 }]
+    }
+  }
+];