Explanation for Regexp.new(search)

gistfile1.rb

#Following is the problem with your solution. You have 2 if's , in ruby we need only 1 if
# notice that it has only one IF :)
if matched_games.length > 0 &&  matched_games.include?(search)
    puts "Game #{search} found."
end

#clarrifications
Regexp.new(search) #is creating a new regular expression object in ruby. 
#<Any Object>.new is the way of initializing an object in ruby. In this case 'Regexp' class. 
#Regular expression can me used to match words in different options. Like
# Ex: We have two string 
# 1 - Sam
# 2 - Sameera
# regexp = Regexp.new("Sam")
# regexp.match("Sameera")

# read more about ruby regex here (http://ruby-doc.org/core-1.9.2/Regexp.html)

games.grep #will an array of every element in enum for which match the pattern. This is a method of 'Enumerable', and 'Array' is 
#uses 'Enumerable' class. 
# read more here (http://ruby-doc.org/core-2.1.2/Enumerable.html#method-i-grep)

#So what is happening here is...
games.grep(Regexp.new(search)) 

# Regexp.new(search) - creating a new RegularExpression with the search word 'Super Mario Bros.'
# then it passes to 'games.grep' array, 'games' is an Array. 
# then it returns the matching words