.eslintrc

{
  "parser": "babel-eslint",
  "env": {
    "node": true,
    "mocha": true
  },
  // http://eslint.org/docs/user-guide/configuring.html#configuring-rules
  // https://github.com/airbnb/javascript/tree/master/packages/eslint-config-airbnb/rules
  "rules": {
    "brace-style": [2, "1tbs", { "allowSingleLine": true }], // braces on same line, allows one line statements
    "comma-dangle": [2, "never"], // no trailing commas
    "curly": [1], // require braces
    "default-case": 2, // require default case in switch statements
    "no-extra-bind": 2, // disallow unnecessary function binding
    "eqeqeq": [2, "smart"], // require the use of === and !==
    "guard-for-in": 2, // make sure for-in loops have an if statement
    "no-alert": 2,  // disallow the use of alert, confirm, and prompt
    "no-cond-assign": [2, "except-parens"], // stop accidental assignments when comparisions are meant
    "no-floating-decimal": 2, // disallow the use of leading or trailing decimal points in numeric literals
    "no-trailing-spaces": 2, // disallow trailing whitespace at the end of lines
    "no-with": 2, // disallow use of the with statement
    "no-unused-vars": [1], // disallow unused variables
    "radix": 2, // require use of the second argument for parseInt()
    "semi": [2, "always"], // always require semicolons
    "space-infix-ops": 2, // require spaces around operators
    "yoda": 2 // disallow Yoda conditions eg if (value == variable)
  }
}