How can I iterate through an array of numbers, and add a string to the output in each iteration? I'm using "puts" to display the number.
The array
nums = Array[1, 2, 3, 4, 5]
Iterating the array
for i in nums
puts i + " Carrots"
end
I'm getting this response
test.rb:40:in `+': String can't be coerced into Integer (TypeError)String can't be coerced into Integer (TypeError)String can't be coerced into Integer (TypeError)
to_sYou can use to_s to convert integer to string.
nums = Array[1, 2, 3, 4, 5]
for i in nums
puts i.to_s + " Carrots"
end
output:
1 Carrots
2 Carrots
3 Carrots
4 Carrots
5 Carrots
nums = Array[1, 2, 3, 4, 5]
for i in nums
puts "#{i} Carrots"
end
Output:
1 Carrots
2 Carrots
3 Carrots
4 Carrots
5 Carrots
Hope it helps.
Just out of curiosity:
puts [1, 2, 3, 4, 5].product([" Carrots"]).map(&:join)
#⇒ 1 Carrots
# 2 Carrots
# 3 Carrots
# 4 Carrots
# 5 Carrots
You can convert the number using the method to_s and concatenate with +, or use interpolation, but looping with for doesn't feels like the ruby way
Using iterators
nums = [1, 2, 3, 4]
nums.each do |num|
puts num.to_s + ' Carrots'
end
nums.each do |num|
puts "#{num} Carrots"
end
Note: Use simple quotes if interpolation is not going to be used
More elegant one line solution
puts nums.map {|num| num.to_s + ' Carrots'}
puts nums.map {|num| "#{num} Carrots"}
i.to_s