Map

Difficulty:
Elementary

Tags:
enumerables

Instructions:
How would you create an array that contains the squares of all elements in a range?

Problem and Solution:

Hello World

Difficulty:
Elementary

Tags:
strings

Instructions:
Use native String#method

Problem and Solution:

String Reverse

Difficulty:
Elementary

Tags:
strings

Instructions:
What happens when you apply reverse? Hint: don't forget to quote your strings!.

Problem and Solution:

Maximum

Difficulty:
Elementary

Tags:
numbers

Instructions:
Find the max in a given set of numbers

Problem and Solution: