.eslintrc

{
  "parser": "babel-eslint",
  "env": {
    "browser": true,
    "node": true,
    "es6": true
  },
  "ecmaFeatures": {
    "modules": true,
  },
  "rules": {
    "comma-dangle": [2, "always-multiline"],
    "no-cond-assign": 2,
    "no-extra-semi": 2,
    "no-constant-condition": 1,
    "no-console": 1,
    "no-dupe-args": 2,
    "no-dupe-keys": 2,
    "no-duplicate-case": 2,
    "no-empty": 2,
    "no-func-assign": 2,
    "no-irregular-whitespace": 2,
    "no-sparse-arrays": 2,
    "curly": [1, "multi-line"],
    "dot-location": [2, "property"],
    "eqeqeq": [2, "smart"],
    "no-eval": 2,
    "no-extend-native": 2,
    "no-fallthrough": 1,
    "no-invalid-this": 2,
    "no-labels": 1,
    "no-lone-blocks": 2,
    "no-undef": 2,
    "no-undefined": 2,
    "no-unused-vars": 2,
    "no-use-before-define": 2,
    "array-bracket-spacing": [2, "never"],
    "brace-style": [2, "stroustrup"],
    "no-multiple-empty-lines": [2, {"max": 1}],
    "no-trailing-spaces": 2,
    "no-underscore-dangle": 2,
    "no-unneeded-ternary": 1,
    "no-mixed-spaces-and-tabs": 2,
    "comma-spacing": [2, {"before": false, "after": true}],
    "block-spacing": 2,
    "semi": [2, "always"],
    "object-curly-spacing": [2, "always"],
    "arrow-parens": [2, "always"],
    "arrow-spacing": 2,
    "no-const-assign": 2,
    "no-dupe-class-members": 2,
    "no-var": 2,
    "object-shorthand": 2,
    "prefer-arrow-callback": 2,
    "prefer-const": 2,
    "prefer-spread": 2,
    "prefer-template": 2
  }
}