Simple input problem

Ruby
1

Hello all,

Somehow the following always worked for me before, but tonight, it
failed, and I don’t understand why:

gets a

It’s a simple gets command! For some reason when I press Enter, the
cursor just stays there, waiting for more input. What can this be?
Also, I can’t do gets a, if I haven’t assigned a value to a yet. How is
that possible? I thought I could use ruby variables without declaring
them first! Please help, it’s frustrating to get stuck on something so
basic!

2

Omar C. wrote:

Hello all,

Somehow the following always worked for me before, but tonight, it
failed, and I don’t understand why:

gets a

It’s a simple gets command! For some reason when I press Enter, the
cursor just stays there, waiting for more input. What can this be?
Also, I can’t do gets a, if I haven’t assigned a value to a yet. How is
that possible? I thought I could use ruby variables without declaring
them first! Please help, it’s frustrating to get stuck on something so
basic!

Never mind! I was doing it wrong, it is

a = gets

!!

3

Hi,

Am Freitag, 18. Dez 2009, 12:18:03 +0900 schrieb Omar C.:

Omar C. wrote:

gets a

Never mind! I was doing it wrong, it is

a = gets

Be aware that gets' will returnnil’ when the user presses
Ctrl-D. Saying

gets.chomp

will raise an exception then.

Bertram

4

Thanks, I will keep that in mind.