vitalypasechnik / ts_sort_students

TypeScript basics task. Sort students.

Sort students

Create a sortStudents function that takes 3 parameters and return a new array with students sorted according to the given params. The original array must not change.

The parameters are:

• students an initial array of students
• sortBy a type of sort (see SortType enum)
• order a sort order that can be asc or desc

You also need to add correct types:

• Create Student interface matching the next data:

  {
    name: 'Jessica',
    surname: 'Buxton',
    age: 26,
    married: true,
    grades: [5, 5, 4, 5, 4, 4, 4, 4, 5, 4, 5, 4],
  }
  

• Create a SortType enum, having the next values:

  Name
  Surname
  Age
  Married
  AverageGrade
  

  Hint: AverageGrade is sorting by an average value in grades array.
• Create SortOrder type with only 2 values 'asc' and 'desc' Hint: If values are the same the students should go in the original order (no matter we use asc or desc order)

Examples:

// from the youngest to the oldest
const studentsByAge = sortStudents(students, SortType.Age, 'asc');

// Surnames from Z to A
const studentsBySurnameDesc = sortStudents(students, SortType.Surname, 'desc');

// from the lowest Average grade to the highest
const studentsByGrade = sortStudents(students, SortType.AverageGrade, 'asc');