1. Sorted array:
 - 1
 - 2
 - 3

2. Sorted in descending order:
 - 3
 - 2
 - 1

3.1. Sorted by length:
 - a
 - bc
 - abc

3.2. Sorted by length in descending order:
 - abc
 - bc
 - a

4. Sorted by the 1st character:
 - abc
 - a
 - bc

5.1. Sorted by the 1st character with nspl\op\itemGetter:
 - abc
 - a
 - bc

5.2. Sorted by the 1st character with nspl\op\itemGetter in descending order:
 - bc
 - abc
 - a

6. Sorted by the 1st character with a comparison function:
 - bc
 - a
 - abc

7. Sorted lexicographically:
 - a
 - abc
 - bc

8.1. Users sorted by name:
 - {"name":"Alex","age":30}
 - {"name":"Jack","age":25}
 - {"name":"Robert","age":20}

8.2. Users sorted by name in descending order:
 - {"name":"Robert","age":20}
 - {"name":"Jack","age":25}
 - {"name":"Alex","age":30}

9.1. Users presented as list of objects sorted by name:
 - Alex, 30y.o.
 - Jack, 25y.o.
 - Robert, 20y.o.

9.2. Users presented as list of objects sorted by name in descending order:
 - Robert, 20y.o.
 - Jack, 25y.o.
 - Alex, 30y.o.

10.1. Users presented as list of objects sorted by age:
 - Robert, 20y.o.
 - Jack, 25y.o.
 - Alex, 30y.o.

10.2. Users presented as list of objects sorted by age in descending order:
 - Alex, 30y.o.
 - Jack, 25y.o.
 - Robert, 20y.o.