TECH601-00 Day 3 Exercise - Country Data

country.rb

# Angola:
#   id: AGO
#   name: Angola
#   population: 21,471,618
#   capital: Luanda
#   latitude: -8.81155
#   longitude: 13.242
#   income level: Upper Middle
#   high income?: false

country_id = "AGO"
country_name = "Angola"
country_population = 21_471_618
country_capital = "Luanda"
country_latitude = -8.81155
country_longitude = 13.242
country_income_level = "Upper Middle"
country_high_income = false

puts "The population of #{country_name} is #{country_population}"

# The capital of _ is _

# output the string "high income" if the income is high
# puts "High Income" if country_high_income == true

if country_income_level == "High"
  puts "High Income"
else
  puts "NOT High Income"
end

# output the country population if it is over 20 million
if country_population > 20_000_000
  puts country_population
else
  puts "There are less than 20 million people"
end

# output "high population" if over 20 million,
# output "medium population" if between 10 and 20 million,
# output "low population" if below 10 million
country_population = 20_000_000

if country_population > 20_000_000
  puts "high population"
end

if country_population >= 10_000_000 && country_population <= 20_000_000 
  puts "medium population"
end

if country_population < 10_000_000
  puts "low population"
end

# compact view - happy path for conditionals
greater_than_20_million = (country_population > 20_000_000)
high_population = greater_than_20_million
medium_population = ((country_population >= 10_000_000) && (country_population <= 20_000_000)) 
low_population = country_population < 10_000_000 && country_population >= 1

if high_population
  puts "high population"
elsif medium_population
  puts "medium population"
elsif low_population
  puts "low population"
else
  "No population"
end

case
when high_population
  puts "high population"
when medium_population
  puts "medium population"
when low_population
  puts "low population"
else
  "No population"
end