.eslintrc.json

{
  "root": true,
  "parserOptions": {
    "ecmaVersion": 2018
  },
  "plugins": ["prettier"],
  "rules": {
    "no-debugger": ["warn"],
    "no-regex-spaces": ["error"],
    "no-unsafe-negation": ["error"],
    "curly": ["error", "multi-or-nest", "consistent"],
    "dot-location": ["error", "property"],
    "dot-notation": ["error"],
    "eqeqeq": ["error", "smart"],
    "no-else-return": ["error"],
    "no-extra-bind": ["error"],
    "no-extra-label": ["error"],
    "no-floating-decimal": ["error"],
    "no-implicit-coercion": ["error", { "allow": ["!!"] }],
    "wrap-iife": ["error", "inside"],
    "strict": ["error", "global"],
    "func-call-spacing": ["error", "never"],
    "comma-style": ["error", "last"],
    "keyword-spacing": ["error"],
    "linebreak-style": ["error", "unix"],
    "new-parens": ["error"],
    "no-lonely-if": ["error"],
    "no-multiple-empty-lines": ["error", { "max": 2, "maxEOF": 1 }],
    "no-whitespace-before-property": ["error"],
    "semi": ["error", "never"],
    "arrow-body-style": ["error", "as-needed"],
    "arrow-parens": ["error", "as-needed"],
    "arrow-spacing": ["error"],
    "no-useless-computed-key": ["error"],
    "no-useless-rename": ["error"],
    "no-var": ["off"],
    "prefer-spread": ["error"],
    "prefer-template": ["error"],
    "rest-spread-spacing": ["error", "never"],
    "prefer-const": ["warn", { "destructuring": "all" }],
    "no-unreachable": ["warn"],
    "no-unused-vars": ["off"],

    "prettier/prettier": [
      "warn",
      {
        "printWidth": 80,
        "trailingComma": "none",
        "singleQuote": false,
        "semi": false
      }
    ]
  }
}