Search Results for: Original prints
a.flatten.uniq # => [ , 'hi', , , , ] constructing and using an associative array (in ruby, called a hash): hash = hash.new # equivalent to hash = {} hash = { :water => 'wet', :fire => 'hot' } # makes the previous line redundant as we are now # assigning hash to a new, separate hash object puts hash[:fire] # prints
"hot" hash.each_pair do |key, value| # or: hash.each do |key, value| puts "#{key} is #{value}" end # returns {:water=>"wet", :fire=>"hot"} and prints: # water is wet # fire is hot hash.delete :water # deletes the pair :water => 'wet' and returns "wet" hash.delete_if {|key,value| value == 'hot'} # deletes...
https://en.wikipedia.org/wiki/Ruby_(programming_language)