.eslintrc.json

{
  "env": {
    "es6": true,
    "node": true,
    "mocha": true
  },
  "globals": {
    "artifacts": true,
    "contract": true,
    "web3": true,
    "assert": true
  },
  "extends": "eslint:recommended",
  "parserOptions": {
    "sourceType": "module",
    "ecmaVersion": 2017
  },
  "rules": {
    "indent": ["error", 2, {"SwitchCase": 1, "MemberExpression": "off"}],
    "linebreak-style": ["error", "unix"],
    "semi": ["error", "always"],
    "eqeqeq": ["warn", "always"],
    "curly": "error",
    "no-extra-boolean-cast": "off",
    "no-unused-vars": "warn",
    "object-curly-spacing": ["error", "always", {"objectsInObjects": true, "arraysInObjects": true}],
    "array-bracket-spacing": ["error", "never"],
    "require-yield": "off",
    "func-call-spacing": ["error", "never"],
    "quotes": ["error", "single"],
    "key-spacing": ["error", { "beforeColon": false, "afterColon": true, "mode": "strict" }],
    "quote-props": ["error", "as-needed"],
    "no-console": "off",
    "no-empty": "warn",
    "no-var": "error",
    "prefer-const": "error"
  }
}