.eslintrc

{
  "parser": "babel-eslint",
  "extends": [
    "prettier"
  ],
  "env": {
    "browser": false,
    "node": true,
    "es6": true,
    "jest": true
  },
  "globals": {
    "expect": true
  },
  "parserOptions": {
    "sourceType": "module"
  },
  "rules": {
    "no-var": 2,
    "prefer-const": 2,
    "no-shadow": 2,
    "no-shadow-restricted-names": 2,
    "no-undef": 2,
    "no-unused-vars": [2, {
      "vars": "local",
      "args": "after-used"
    }],
    "no-use-before-define": [2, {
      "functions": false,
      "classes": true
    }],
    "no-cond-assign": [2, "always"],
    "no-console": 1,
    "no-debugger": 1,
    "no-alert": 1,
    "no-constant-condition": 1,
    "no-dupe-keys": 2,
    "no-duplicate-case": 2,
    "no-empty": 2,
    "no-ex-assign": 2,
    "no-extra-boolean-cast": 0,
    "no-extra-semi": 2,
    "no-func-assign": 2,
    "no-inner-declarations": 2,
    "no-invalid-regexp": 2,
    "no-irregular-whitespace": 2,
    "no-obj-calls": 2,
    "no-sparse-arrays": 2,
    "no-unreachable": 2,
    "use-isnan": 2,
    "block-scoped-var": 2,
    "consistent-return": 2,
    "curly": [2, "multi-line"],
    "default-case": 2,
    "dot-notation": [2, {
      "allowKeywords": true
    }],
    "eqeqeq": 2,
    "guard-for-in": 2,
    "no-caller": 2,
    "no-else-return": 2,
    "no-eq-null": 2,
    "no-eval": 2,
    "no-extend-native": 2,
    "no-extra-bind": 2,
    "no-fallthrough": 2,
    "no-floating-decimal": 2,
    "no-implied-eval": 2,
    "no-lone-blocks": 2,
    "no-loop-func": 2,
    "no-multi-str": 2,
    "no-native-reassign": 2,
    "no-new": 2,
    "no-new-func": 2,
    "no-new-wrappers": 2,
    "no-octal": 2,
    "no-octal-escape": 2,
    "no-param-reassign": 2,
    "no-proto": 2,
    "no-redeclare": 2,
    "no-return-assign": 2,
    "no-script-url": 2,
    "no-self-compare": 2,
    "no-sequences": 2,
    "no-throw-literal": 2,
    "no-with": 2,
    "radix": 2,
    "vars-on-top": 2,
    "wrap-iife": [2, "any"],
    "yoda": 2,
    "quotes": [2, "single", "avoid-escape"],
    "camelcase": [2, {
      "properties": "never"
    }],
    "comma-spacing": [2, {
      "before": false,
      "after": true
    }],
    "comma-style": [2, "last"],
    "eol-last": 2,
    "func-names": 1,
    "key-spacing": [2, {
      "beforeColon": false,
      "afterColon": true
    }],
    "new-cap": [0, {
      "newIsCap": true
    }],
    "no-multiple-empty-lines": [2, {
      "max": 3
    }],
    "no-nested-ternary": 2,
    "no-new-object": 2,
    "no-spaced-func": 2,
    "no-trailing-spaces": 2,
    "no-mixed-spaces-and-tabs": 2,
    "no-extra-parens": [2, "functions"],
    "no-underscore-dangle": 0,
    "one-var": [2, "never"]
  }
}