asked on

ruby script, how to read in a string and compare it to a string

This is a very simple question. But, i'm very new to ruby.

I have a script. rubyScript.rb. running it on the command line.

input = ''

while input != '5' do
if input == '1'
puts '1'
end

input = gets
end

However, when I run this and enter 1, the comparison is still false. I tried '1' and 1.

cheers,
alex

HainKurt

try double quotes

if input == "1" ...

kaufmed

I believe gets is returning the value including the newline. Your comparison ends up being:

if '1\n' == '1'

Open in new window

which is not true. Try ruby's equivalent chomp operator. I'll look to see if I can find it.

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kaufmed

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alexmac05

ASKER

Thanks for help, however, sadly, it doesn't like any of these solutions either.

tried
"1\n"
"1"
'1'
and i tried adding
input = chomp(input)

script:

input = ''

while input != '5' do
if input == '1'
puts '1'
end

input = gets
input = chomp(input)
end

alexmac05

ASKER

this doesn't work either
input = ''

while input != '5' do
if input == '1'
puts '1'
end

input = gets.chomp
end

alexmac05

ASKER

wait, that worked!

sweet

alexmac05

ASKER

Thanks! helped me a lot.

cheers,
alex

JESii

This works:

input = ''

while (input = gets.chomp.strip) != '5' do
  puts "input: " + input
  if input == '1'
     puts 'found 1'
     end
end

Open in new window

alexmac05

ASKER

Thanks JESii. i had already awarded teh points, but i thank you for the help also!