irb Questions
1
Solved
https://ruby-doc.org/stdlib-2.6.3/libdoc/tmpdir/rdoc/Dir.html contains a description about the mktmpdir method of the Dir class.
mktmpdir(prefix_suffix=nil, *rest)
::mktmpdir creates a temporary d...
8
I am using IRB (interactive ruby console) to learn how to program with Ruby. How do I load a file into the console if I write my programs in a text editor first?
6
Solved
I just installed ruby 1.9.2 on windows machine and Backspace or any other arrow keys don't work. This happens only when I open IRB on Git Bash console. But it works fine on Windows console. Any hel...
6
Solved
Say I am running IRB and I type this into the console:
def full_name(first, last)
puts "Your full name is: #{first, ' ', last}"
end
Say, that I wanted to edit that to include the parameter midd...
3
I am starting out with Ruby on Rails. I am currently going through a tutorial that says that I have to run a .rb file from IRB to create a .xml file in my current directory.
My question is how do I...
Pinkston asked 27/5, 2011 at 8:46
12
Solved
I want to get something like this to look nice:
>> ProductColor.all
=> [#<ProductColor id: 1, name: "White", internal_name: "White", created_at: "2009-06-10 04:02:44", updated_at: "200...
Outstand asked 3/8, 2009 at 20:43
3
Solved
If you change a file then re-load it in pry or irb, it seems to pick up any NEW functionality you've added to that class, but doesn't forget about OLD functionality you've deleted from that class.
...
4
Solved
An example is if I go into IRB and do the following:
jruby-1.6.7 :026 > puts [1,2,3,4,5]
1
2
3
4
5
=> nil
Is there anyway to suppress the nil? The problem is if I put in a large data stru...
Officiate asked 14/4, 2012 at 2:32
3
Solved
I'm pretty tired of writing this line every time I want to open the Rails console:
irb(main):001:0> ActsAsTenant.current_tenant = User.find(1).account
Is there any way to run command/script b...
Gymnasiarch asked 3/3, 2016 at 12:46
2
Solved
When I run rails c and press the up key when irb starts up, I can see the last commands I entered when my app dropped to irb after encountering a debugger command for the ruby-debug gem. I would no...
Tranquilizer asked 10/12, 2010 at 19:11
9
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In the python world, there are a number of alternative python interpreters that add cool additional features. One particularly useful example is bpython, which adds dynamic syntax highlighting, aut...
2
3
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I think this is a little, easy question!
I'm using .env file to keep all my environment variables, and i'm using foreman.
Unfortunately, these environment variables are not being loaded when runn...
Agent asked 12/3, 2013 at 19:52
3
Solved
I'm using Ubuntu Server 10 lucid, ruby 1.9.2-p0. In irb, the left arrow shows ^[[D. Any idea?
6
Solved
Can I drop to an IRB prompt from a running Ruby script?
I want to run a script, but then have it give me an IRB prompt at a point in the program with the current state of the program, but not just...
2
Solved
I'm running into something weird here.
I have an "authenticator" that relies on ND5 to hash a certain string we match as password. The problem when I run my tests is this:
NoMethodError: undefined...
Unattached asked 23/8, 2012 at 10:38
6
Solved
I'm running Ruby on Windows though I don't know if that should make a difference. All I want to do is get the current working directory's absolute path. Is this possible from irb? Apparently from a...
Edric asked 21/12, 2009 at 1:23
4
Solved
I am experiencing very strange behavior in Ruby 1.9.3's IRB with Mac OS 10.7.3
When I try to enter an Umlaut, it's escaped in the prompt and looks like this (I entered "ü" on the keyboard)
irb(mai...
5
Solved
I'm trying to write a rake task that will set up an environment mirroring my project.
task :environment do
require 'rubygems'
require 'sequel'
# require 'my_projects_special_files'
end
task :...
2
Solved
Just curious about it.
If you open the IRB and type _, you'll get nil as response:
irb(main):001:0> _
=> nil
And you can modify its value:
irb(main):002:0> _ = 'some value'
irb(main):...
8
Solved
Is there an easy way to repeat a previous command in Ruby irb?
I wish to have something like using exclamation mark (!) in Unix.
Thank you.
4
Solved
I have a string str = "xyz\123" and I want to print it as is.
The IRB is giving me an unexpected output. Please find the same below:-
1.9.2p290 :003 > str = "xyz\123"
=> "xyzS"
1.9.2p290 ...
Wensleydale asked 10/4, 2012 at 4:53
1
Solved
Using the code below:
variable = puts "hello world".upcase
Why does Ruby automatically puts Hello world in upcase, without the variable first being invoked? I understand that you are setting the...
2
Solved
This is a long standing source of frustration, but maybe there is something I'm missing. If i'm in the middle of debugging, and I want to exit the debugger and return to IRB or Rails Console, "quit...
Clava asked 12/11, 2011 at 18:2
21
Solved
How do you clear the IRB console screen?
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