.eslintrc.js

module.exports = {
  "env": {
    "browser": true,
    "es6": true,
    "jest": true,
  },
  "extends": [
    "eslint:recommended",
    "plugin:jest/recommended",
    "plugin:vue/recommended"
  ],
  "parserOptions": {
    "ecmaVersion": 2018,
    "sourceType": "module"
  },
  "rules": {
    "indent": [
      "error",
      2
    ],
    "linebreak-style": [
      "off",
      "unix"
    ],
    "quotes": [
      "error",
      "single"
    ],
    "semi": [
      "error",
      "always"
    ],
    "vue/max-attributes-per-line": ["error", {
      "singleline": 1,
      "multiline": {
        "max": 1,
        "allowFirstLine": true
      }
    }],
    "vue/html-self-closing": ["error", {
      "html": {
        "void": "always",
        "normal": "never",
        "component": "always"
      }
    }],
    "vue/html-closing-bracket-newline": ["error", {
      "singleline": "never",
      "multiline": "never"
    }],
    "vue/component-name-in-template-casing": ["error", "kebab-case", {
      "ignores": []
    }],
    "vue/singleline-html-element-content-newline": ["error", {
      "ignoreWhenNoAttributes": true,
      "ignoreWhenEmpty": true,
      "ignores": ["pre", "textarea", "span"]
    }],
    "vue/multiline-html-element-content-newline": ["warning", {
      "ignoreWhenEmpty": true,
      "ignores": ["pre", "textarea"]
    }]
  }
};