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Joe-t
Joe-t

Reputation: 3

Trying to create an array from input whilst in a loop - Ruby

I am trying to create a programme that asks the user for a number, the programme keeps asking the user for a number until "stop" is entered at which point the sum of the numbers is returned.

The code sort of works but I realise that the first puts/gets.chomp is outside of the loop and is not being added to the array. I dont know how to implement this, any help thoughts would be greatly appreciated!

array = []

puts 'Give me a number'

answer = gets.chomp

until answer == "stop"
  puts 'Give me a number'
answer = gets.chomp
  array.push(answer)
end

array.pop

array

Upvotes: 0

Views: 654

Answers (1)

Schwern
Schwern

Reputation: 164829

You have a situation like this.

do something
determine if we should stop
do something else
repeat

For this sort of fine control use a loop to repeat until you break.

# Initialize your list of numbers.
numbers = []

# Start a loop.
loop do
  # Get the answer.
  puts 'Give me a number'
  answer = gets.chomp

  # Stop if the user wants to stop.
  break if answer == 'stop'

  # Store the number after checking that it is a number.
  numbers.push(answer)
end

p numbers

Upvotes: 2

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