.eslintrc.js

module.exports = {
  "extends": "airbnb-base",
  "env": {
    "jest": true
  },
  rules: {
    // https://github.com/airbnb/javascript/issues/1089

    // https://stackoverflow.com/a/35637900/684957
    // allow to add properties to arguments
    "no-param-reassign": [2, { "props": false }],

    // https://eslint.org/docs/rules/no-plusplus
    // allows unary operators ++ and -- in the afterthought (final expression) of a for loop.
    "allowForLoopAfterthoughts": true,
  },
  globals: {
    BigInt: true,
  }
};