Hashes and collections

hashes_and_collections.md

Given a CSV document with three columns, firstname, lastname, and email, please read that file into a data structure that I can use to:

1. List every person found in the CSV by firstname, lastname and email
2. Find a person's information by email

def read_csv_file(csv_file_path)
  csv_data = []
  CSV.foreach(csv_file_path) do |row|
    csv_data.push({
      firstname: row.field('firstname'),
      lastname: row.field('lastname'),
      email: row.field('email')
    })
  end
  csv_data
end

# List every person by firstname, lastname, email

def first_last_email(csv_data)
  csv_data.each do |data|
    puts "#{data[:firstname]}, #{data[:lastname]}, #{data[:email]}""
  end
end

# find person's information by email

def find_by_email(csv_data, email)
  csv_data.each do |data|
    if data.email == email
      return data
    end
  end
end