.eslintrc.json

{
  "env": {
    "browser": true,
    "commonjs": true,
    "es6": true,
    "node": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:vue/recommended",
    "plugin:import/errors",
    "plugin:import/warnings"
  ],
  "parserOptions": {
    "parser": "babel-eslint",
    "ecmaFeatures": {
      "jsx": true
    },
    "ecmaVersion": 2017,
    "sourceType": "module"
  },
  "plugins": ["vue", "prettier"],
  "rules": {
    "no-const-assign": "warn",
    "no-this-before-super": "warn",
    "no-undef": "warn",
    "no-unreachable": "warn",
    "no-unused-vars": "off",
    "constructor-super": "warn",
    "valid-typeof": "warn",
    "import/no-unresolved": "off",
    "import/no-unassigned-import": "warn",
    "semi": 0,
    "no-console": "off",
    "prettier/prettier": "error",
    "vue/max-attributes-per-line": [
      2,
      {
        "singleline": 2,
        "multiline": {
          "max": 1,
          "allowFirstLine": true
        }
      }
    ]
  }
}