.eslintrc.js

module.exports = {
  root: true,
  env: {
    node: true,
  },
  extends: [
    'plugin:vue/essential',
    '@vue/airbnb',
  ],
  rules: {
    'no-console': process.env.NODE_ENV === 'production' ? 'error' : 'off',
    'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off',
    'comma-dangle': ['error', {
      arrays: 'always-multiline',
      objects: 'always-multiline',
      imports: 'always-multiline',
      exports: 'always-multiline',
      functions: 'never',
    }],
    'import/no-extraneous-dependencies': ['error', {
      devDependencies: true,
      optionalDependencies: false,
      peerDependencies: false,
    }],
    'linebreak-style': ['off'],
    'no-mixed-operators': ['error', {
      groups: [
        ['&', '|', '^', '~', '<<', '>>', '>>>'],
        ['==', '!=', '===', '!==', '>', '>=', '<', '<='],
        ['&&', '||'],
        ['in', 'instanceof'],
      ],
      allowSamePrecedence: true,
    }],
    'no-param-reassign': ['error', {
      props: true,
      ignorePropertyModificationsFor: [
        'state',
        'acc',
      ],
    }],
    'object-curly-newline': ['error', {
      ObjectExpression: { consistent: true },
      ObjectPattern: { multiline: true },
    }],
    'template-curly-spacing': 'off',
    indent: [
      'error', 2,
      { ignoredNodes: ['TemplateLiteral'] }
    ],
  },
  parserOptions: {
    parser: 'babel-eslint',
  },
  globals: {
    LIBNAME: true,
  },
};