def contain_number(numbers, number)
for i in numbers
return true if i == number
end
false
end
data = [1, 2, 3]
isContain2 = contain_number(data, 2)
# isContain2 is True
isContain4 = contain_number(data, 4)
# isContain4 is False
puts "isContain2 is #{isContain2}"
puts "isContain4 is #{isContain4}"