20230220_ruby_example.rb

# Given a string with key value pairs like this : "key=ABCD, age=68, key=AIAS, age=66",
# figure out which of the pairs has age grwater than 50



# Removes the key=anything first, then commas, then whitespaces leaving age=
# Then split age=[Number] in order to get the list of numbers
# count the ones greater than 50

def count_ages_greather_than(str, age_limit = 50)
  ages = str.gsub(/key=\S*/, '').strip.gsub(',', '').strip.gsub(' ', '').split("age=")
  # output array = ["68", "66", "68", "50", "68", "66", "68", "66"]

  ages_count = 0 
  ages.each do |age|
    ages_count += 1  if age.to_i > 50
  end
  return ages_count
end


str = "key=ABCD, age=68, key=AIAS, age=66, key=ABCD, age=68, key=AIAS, age=50, key=ABCD, age=68, key=AIAS, age=66, key=ABCD, age=68, key=AIAS, age=66"
puts count_ages_greather_than(str, 50)