Required Parameters

requiredParam.js

function requiredParam (param) {
  const requiredParamError = new Error(
   `Required parameter, "${param}" is missing.`
  );
  // preserve original stack trace
  if (typeof Error.captureStackTrace === ‘function’) {
    Error.captureStackTrace(
      requiredParamError, 
      requiredParam,
    );
  }
  throw requiredParamError;
}

function findUsersByRole ({
  role = requiredParam('role'),
  withContactInfo, 
  includeInactive,
} = {}) {...}

https://medium.freecodecamp.org/elegant-patterns-in-modern-javascript-roro-be01e7669cbd