.eslintrc

{
  "env": {
    "browser": true,
    "es6": true
  },
  // "parser": "babel-eslint",
  "parserOptions": {
    "sourceType": "module",
    "allowImportExportEverywhere": true
  },
  "globals": {
    "L": true
  },
  "rules": {
    "prefer-const": 2,
    "yoda": 0,
    "block-scoped-var": 2,
    "camelcase": 1,
    "comma-style": 2,
    "curly": 0,
    "dot-notation": 0,
    "eqeqeq": [2, "allow-null"],
    "guard-for-in": 2,
    "key-spacing": 0,
    "new-cap": 2,
    "no-bitwise": 2,
    "no-caller": 2,
    "no-cond-assign": [2, "except-parens"],
    "no-debugger": 2,
    "no-empty": 2,
    "no-eval": 2,
    "no-extend-native": 2,
    "no-extra-parens": 0,
    "no-irregular-whitespace": 2,
    "no-iterator": 2,
    "no-loop-func": 2,
    "no-multi-spaces": 0,
    "no-multi-str": 0,
    "no-mixed-spaces-and-tabs": 0,
    "no-new": 2,
    "no-plusplus": 0,
    "no-proto": 2,
    "no-script-url": 2,
    "no-sequences": 2,
    "no-shadow": 0,
    "no-undef": 2,
    "no-underscore-dangle": 0,
    "no-unused-vars": [2, { "vars": "all", "args": "none" }],
    "no-use-before-define": [2, "nofunc"],
    "no-with": 2,
    "quotes": 0,
    "semi": [2, "always"],
    "no-extra-semi": 2, // disallow unnecessary semicolons
    "semi-spacing": [1, { "before": false, "after": true }], // enforce spacing before and after semicolons
    "strict": 0,
    "valid-typeof": 2,
    "wrap-iife": [2, "inside"]
  }
}