.eslintrc

{
  "parser": "babel-eslint",
  "ecmaFeatures": {
    "arrowFunctions" : true,
    "binaryLiterals" : true,
    "blockBindings" : true,
    "classes" : true,
    "defaultParams" : true,
    "destructuring" : true,
    "forOf" : true,
    "generators" : true,
    "modules" : true,
    "objectLiteralComputedProperties" : true,
    "objectLiteralDuplicateProperties" : true,
    "objectLiteralShorthandMethods" : true,
    "objectLiteralShorthandProperties" : true,
    "octalLiterals" : true,
    "regexUFlag" : true,
    "regexYFlag" : true,
    "restParams" : true,
    "spread" : true,
    "superInFunctions" : true,
    "templateStrings" : true,
    "unicodeCodePointEscapes" : true,
    "globalReturn" : true,
    "jsx" : true
    },
    "env": {
// I write for browser
"browser": true,
// in CommonJS
"node": true
},
// To give you an idea how to override rule options:
"rules": {
  "quotes": [2, "single"],
  "eol-last": [0],
  "no-mixed-requires": [0],
  "no-underscore-dangle": [0],
  "no-trailing-spaces": [2, {"skipBlankLines": true}],
  "no-unused-vars": [0]
}
}