.eslintrc.js

const rulesDirPlugin = require('eslint-plugin-rulesdir');
rulesDirPlugin.RULES_DIR = 'build/eslint/rules/';

module.exports = {
    root: true,
    parserOptions: {
        parser: 'babel-eslint',
        sourceType: 'module'
    },
    extends: [
        'plugin:vue/recommended',
        '@vue/airbnb',
        'standard'
    ],
    env: {
        'browser': true,
    },
    // required to lint *.vue files
    plugins: [
        'rulesdir',
        'vue',
    ],
    // add your custom rules here
    rules: {
        'no-console': process.env.NODE_ENV === 'production' ? 'error' : 'off',
        'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off',
        'rulesdir/class-name-prefix': 'warn',
        'class-methods-use-this': 0,
        'comma-dangle': ['error', {
            'arrays': 'always-multiline',
            'objects': 'always-multiline',
            'imports': 'never',
            'exports': 'never',
            'functions': 'ignore'
        }],
        'import/extensions': 0,
        'import/no-cycle': 0,
        'import/no-extraneous-dependencies': 0,
        'import/no-unresolved': 0,
        'import/prefer-default-export': 0,
        'indent': ['error', 4],
        'max-classes-per-file': 0,
        'no-continue': 0,
        'no-else-return': 0,
        'no-multi-assign': 0,
        'no-param-reassign': ['error', { 'props': false }],
        'no-plusplus': 0,
        'no-prototype-builtins': 0,
        'no-control-regex': 0,
        'object-shorthand': 0,
        'operator-linebreak': 0,
        'prefer-const': 0,
        'prefer-destructuring': 0,
        'prefer-object-spread': 0,
        'prefer-promise-reject-errors': 0,
        'prefer-template': 0,
        'semi': ['error', 'always'],
        'space-before-function-paren': ['error', 'never'],
        'vue/html-indent': ['error', 4],
        'vue/max-attributes-per-line': 0,
        'vue/multiline-html-element-content-newline': 0,
        'vue/no-unused-components': 0,
        'vue/no-v-html': 0,
        'vue/require-prop-types': 0,
        'vue/require-default-prop': 0,
        'vue/singleline-html-element-content-newline': 0,
    },
    overrides: [{
        files: [
            '**/__tests__/*.{j,t}s?(x)',
            '**/tests/unit/**/*.spec.{j,t}s?(x)',
        ],
        env: {
            jest: true,
        },
    }],
};