.eslintrc

{
  "ecmaFeatures": {
    "modules": true,
    "classes": true,
    "arrowFunctions": true,
    "binaryLiterals": true,
    "blockBindings": true,
    "defaultParams": true,
    "forOf": true,
    "generators": true,
    "objectLiteralComputedProperties": true,
    "objectLiteralDuplicateProperties": true,
    "objectLiteralShorthandMethods": true,
    "objectLiteralShorthandProperties": true,
    "octalLiterals": true,
    "regexUFlag": true,
    "regexYFlag": true,
    "superInFunctions": true,
    "templateStrings": true,
    "unicodeCodePointEscapes": true,
    "globalReturn": true
  },
  "env": {
    "mocha": true,
    "node": true
  },
  "rules": {

    // http://eslint.org/docs/rules/

    // BEST PRACTICES WARNINGS
    "block-scoped-var": 1,

    // BEST PRACTICES ERRORS
    "curly": 2,
    "default-case": 2,
    "no-else-return": 2,
    "no-self-compare": 2,
    "no-warning-comments": 2,

    // STYLE WARNINGS
    "no-continue": 1,
    "max-nested-callbacks": [1, 3],

    // STYLE ERRORS
    "strict": 0,
    "brace-style": [2, "1tbs", { "allowSingleLine": false }],
    "camelcase": [2, {"properties": "always"}],
    "comma-spacing": [2, {"before": false, "after": true}],
    "consistent-this": [2, "self"],
    "func-names": 0,
    "indent": [2, 2, {"VariableDeclarator": 2}],
    "key-spacing": [2, { "align": "value" }],
    "new-cap": 2,
    "new-parens": 2,
    "no-inline-comments": 2,
    "no-lonely-if": 2,
    "no-mixed-spaces-and-tabs": [2, "smart-tabs"],
    "no-multiple-empty-lines": [2, {"max": 2}],
    "no-nested-ternary": 2,
    "no-new-object": 2,
    "no-spaced-func": 2,
    "no-trailing-spaces": 2,
    "no-unneeded-ternary": 2,
    "no-extra-parens": 2,
    "operator-assignment": [2, "always"],
    "operator-linebreak": [2, "after"],
    "quotes": [2, "single", "avoid-escape"],
    "semi-spacing": [2, {"before": false, "after": true}],
    "semi": [2, "always"],
    "sort-vars": 2,
    "space-after-keywords": 2,
    "space-before-blocks": [2, "always"],
    "space-before-function-paren": [2, {"anonymous": "always", "named": "never"}],
    "space-in-parens": [2, "never"],
    "space-infix-ops": [2, {"int32Hint": false}],
    "space-return-throw-case": 2,
    "space-unary-ops": 2,
    "spaced-comment": [2, "always", { "exceptions": ["*", "-", "+"]}],
    "object-curly-spacing": [2, "always", {
      "objectsInObjects": false
    }],
    "array-bracket-spacing": [2, "always"],
    "computed-property-spacing": [2, "always"]
  }
}