.eslintrc

{
  "env": {
    "node": true,
    "mocha": true
  },
  "ecmaFeatures": {
    "blockBindings": true,
    "classes": true,
    "templateStrings": true
  },
  "rules": {
    "comma-dangle": [2, "always-multiline"],
    "no-alert": 0,
    "no-else-return": 1,
    "strict": [2, "global"],
    "brace-style": [1, "1tbs"],
    "comma-style": [1, "last"],
    "no-lonely-if": 1,
    "no-var": 2,
    "no-multi-spaces": [1, { "exceptions": { "VariableDeclarator": true } }],
    "no-mixed-requires": 2,
    "quotes": [1, "single", "avoid-escape"],
    "space-before-function-parentheses": [1, "never"],
    "space-after-keywords": [1, "always"],
    "space-before-blocks": [1, "always"],
    "space-in-brackets": [1, "never"],
    "space-in-parens": [1, "never"],
    "spaced-line-comment": [1, "always"]
  }
}