.eslintrc.js

module.exports = {
    "env": {
        "browser": true,
        "es6": true
    },
    "extends": [
      "plugin:vue/recommended"
    ],
    "parserOptions": {
        "ecmaVersion": 2017,
        "sourceType": "module"
    },
    "plugins": [
        "vue",
    ],
    "rules": {
        "array-bracket-spacing": [
            "error",
            "never"
        ],
        "indent": [
            "error",
            2
        ],
        "linebreak-style": [
            "error",
            "unix"
        ],
        "no-trailing-spaces": [
            "error",
            {
                "ignoreComments": true,
                "skipBlankLines": true
            }
        ],
        "quotes": [
            "error",
            "single"
        ],
        "semi": [
            "error",
            "always"
        ],
        "semi-spacing": [
            "error",
            {
                "after": true,
                "before": false
            }
        ],
        "semi-style": [
            "error",
            "last"
        ],

        // strongly recommended
        "vue/component-name-in-template-casing": [
            "error",
            "kebab-case"
        ],
        "vue/html-end-tags" : "error",
        "vue/html-self-closing": [
            "error",
            {
                "html": {
                    "normal": "never",
                    "void": "always"
                }
            }
        ],
        "vue/no-v-html" : 0,
        "vue/max-attributes-per-line": [
            // https://vuejs.org/v2/style-guide/#Multi-attribute-elements-strongly-recommended
            "error",
            {
                "singleline": 5,
                "multiline": {
                    "max": 5,
                    "allowFirstLine": true
                }
            }
        ],
    }
};