February 3rd, 2012, 11:27 PM
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Contributing User
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Join Date: Apr 2006
Location: Newcastle, Australia
Posts: 68
Time spent in forums: 13 h 3 m 55 sec
Reputation Power: 8
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Can't test empty string and exit
Hi
i was reading the chris Pine book and in attempting an exercise I cannot solve how to push a word into an array unless the input is an empty enter stroke in which case I should be printing the array sorted.
I have tried it 3 different ways clearly I am missing something, can you help put me in the right direction please.
Version 1 - Doesn't terminate on empty line
Code:
puts "enter a word one per line."
puts "enter a blank line if you want to end."
puts " >"
word = gets.strip
wordList = []
wordList.push word until word.empty? == true
if word.empty? == true
puts wordList.sort
end
Version 2 - terminates on any input
Code:
puts "enter a word one per line."
puts "enter a blank line if you want to end."
puts " >"
word = gets.strip
wordList = []
if word.empty? == true
wordList.push word
else
puts wordList.sort end
Version 3 - Also terminates on any input
Code:
puts "enter a word one per line."
puts "enter a blank line if you want to end."
puts " >"
word = gets.strip
wordList = []
if word != ''
wordList.push word
else
puts wordList.sort end
I am little confused at where I am going wrong.
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