.eslintrc.js

module.exports = {
  root: true,
  env: {
    browser: true,
    node: true,
    jest: true
  },
  parserOptions: {
    parser: 'babel-eslint'
  },
  extends: [
    'eslint:recommended',
    // 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.
    'plugin:vue/recommended',
    'plugin:prettier/recommended'
  ],
  // required to lint *.vue files
  plugins: [
    'vue'
  ],
  "ignorePatterns": ["lang/*.js", "node_modules/"],
  // add your custom rules here
  rules: {
    'semi': [2, 'never'],
    'no-console': 'off',
    'vue/max-attributes-per-line': 'off',
    'prettier/prettier': ['error', {
      'semi': false
    }],
    "vue/html-self-closing": ["error", {
      "html": {
        "void": "always",
        "normal": "always",
        "component": "always"
      },
      "svg": "always",
      "math": "always"
    }]
  }
}