.eslintrc.json

{
    "env": {
        "browser": true,
        "commonjs": true,
        "es6": true
    },
    "extends": "eslint:recommended",
    "globals": {
      "describe": true,
      "expect": true,
      "jest": true,
      "test": true
    },
    "parserOptions": {
        "ecmaVersion": 6,
        "ecmaFeatures": {
          "experimentalObjectRestSpread": true
        },
        "sourceType": "module"
    },
    "rules": {
        "array-bracket-spacing": [
          "error",
          "always"
        ],
        "comma-dangle": [
          "error",
          "always"
        ],
        "indent": [
            "error",
            2
        ],
        "linebreak-style": [
            "error",
            "unix"
        ],
        "new-cap": [
          "error",
          {
            "capIsNew": false
          }
        ],
        "no-console": [
          "error"
        ],
        "no-self-compare": 1,
        "object-curly-spacing": [
          "error",
          "always"
        ],
        "quotes": [
            "error",
            "backtick"
        ],
        "semi": [
            "error",
            "always"
        ],
        "unicorn/explicit-length-check": 0
    }
}