.eslintrc.js

const prettierConf = require('./prettier.config');

module.exports = {
  root: true,
  parserOptions: {
    parser: 'babel-eslint',
  },
  env: {
    browser: true,
  },
  // https://github.com/vuejs/eslint-plugin-vue#priority-a-essential-error-prevention
  // consider switching to `plugin:vue/strongly-recommended` or `plugin:vue/recommended` for stricter rules.
  extends: ['airbnb', 'plugin:vue/recommended', 'plugin:prettier/recommended'],
  // required to lint *.vue files
  plugins: ['vue', 'prettier'],
  // check if imports actually resolve
  settings: {
    'import/resolver': {
      webpack: {
        config: 'build/webpack.dev.config.js',
      },
    },
  },
  rules: {
    'prettier/prettier': ['error', prettierConf],

    'no-console': 0,
    'prefer-destructuring': 0,
    'no-plusplus': 0,
    'import/no-extraneous-dependencies': 0, // paraview-glance alias
    'linebreak-style': 0,
    'no-underscore-dangle': 0,

    'vue/component-tags-order': 0,

    // don't require .vue extension when importing
    'import/extensions': [
      'error',
      'always',
      {
        js: 'never',
        vue: 'never',
        mjs: 'never',
      },
    ],
    // disallow reassignment of function parameters
    // disallow parameter object manipulation except for specific exclusions
    'no-param-reassign': [
      'error',
      {
        props: true,
        ignorePropertyModificationsFor: [
          'publicAPI', // for vtkjs publicAPI
          'model', // for vtkjs model
          'state', // for vuex state
          'acc', // for reduce accumulators
          'e', // for e.returnvalue
        ],
      },
    ],
    // allow debugger during development
    'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off',
  },
};