JavaScript

Exercises Set 12

const getNewsletterList = ({ departmentNewsletterList, departmentNamesList }) => {
  // write your code here
}

const getNewsletterList = ({ departmentNewsletterList, departmentNamesList }) => {
  sortedNewsletters = departmentNamesList
    .reduce(
      (newsletters, department) =>
        departmentNewsletterList.has(department)
          ? [...newsletters, ...departmentNewsletterList.get(department)]
          : newsletters,
      []
    )
    .sort();
  return sortedNewsletters.length > 0 ? sortedNewsletters : false;
};