For issues relating to developing in Ruby, version 1.9.3. If your question applies to Ruby in general, use the tag [tag:ruby].
Questions tagged [ruby-1.9.3]
495 questions
0
votes
1 answer
Couldn't understand the Ruby command-line switch -0digit
From the doc
-0digit =>
specifies the input record separator ($/) as an octal number. If no digits given, the null character is the separator. Other switches may follow the digits. -00 turns Ruby into paragraph mode. -0777 makes Ruby read whole file…
Arup Rakshit
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0
votes
1 answer
Execute rails server from ruby app on Windows
I must execute a Rails Server (Rails version : 2.3.4, Ruby version : 1.8.7) from a Ruby script ( version 1.9.3).
My ruby script is:
system(start G:/app/Ruby187/bin/ruby.exe G:/app/name_app/script/server)
When I started this script, I got this…
user2058824
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- 3
0
votes
5 answers
What is an eloquent way to sort an array of hashes based on whether a key is empty in Ruby?
array = [{ name:'Joe', foo:'bar' },
{ name:'Bob', foo:'' },
{ name:'Hal', foo:'baz' }
]
What is an eloquent way to sort so that if foo is empty, then put it at the end, and not change the order of the other…
B Seven
- 44,484
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0
votes
2 answers
Looking For Steps In Migrating Ruby 1.8.7 Web Application To Ruby 1.9.3
I am having an big old ruby on rails application
ruby version - 1.8.7 (2011-06-30 patchlevel 352)
rails version - 2.3.16
currently there is no plan in migrating rails version
As far as i know the performance of ruby 1.9.x is 2 times faster than…
Sam
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0
votes
1 answer
Confusion with enum#with_index - starting offset index
a=[11,22,31,224,44].to_enum
=> #
a.select.with_index{|x| puts x if x<2 }
=> []
a.with_index(2)
=> #:with_index(2)>
irb(main):011:0> a.with_index(2){|x|…
DoLoveSky
- 777
- 1
- 6
- 17
0
votes
1 answer
How to click the Submit button which has no id and name using mechanize?
Find the below HTML code:
How to click the Submit button which has no id and name using mechanize?
Arup Rakshit
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0
votes
1 answer
Can the description mentioned code using Selenium-driver be implemented in mechanize?
Could anyone help me by giving small tips mentioning how the below can be written in Mechanize? I am totally new to the Gem Mechanize.
require "rubygems"
require "selenium-webdriver"
driver = Selenium::WebDriver.for :firefox
driver.get…
Arup Rakshit
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0
votes
2 answers
what is the difference between regex anchors \< and \>?
I just introduced myself to Regex anchors \< and \> . But no code I found to see how they are used actually in a code. So in that context can you help me to understand with the help of a code how differently they meet the purposes?
I found these…
Arup Rakshit
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0
votes
4 answers
How %r(..) differs from /../ in Regexp creation in Ruby?
I am using Ruby1.9.3. I am newbie to this platform.
From the docs I got to know we can make Regexp using the below :
%r{pattern}
/pattern/
Now is there any difference between the the two styles above mentioned, interms of fast pattern matching…
arun_roy
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0
votes
1 answer
Ruby 'match()` method throwing an error "can't dump MatchData"
Interactive ruby ready.
> time = /\A(?(0\d|1[0-9]|2[0-3])):(?([1-5]\d|0\d))\Z/
=> /\A(?(0\d|1[0-9]|2[0-3])):(?([1-5]\d|0\d))\Z/
> match = time.match '11:30'
=> #
I am trying…
DoLoveSky
- 777
- 1
- 6
- 17
0
votes
2 answers
How do I run a bash command and process its output in a resque worker?
I have a resque worker that stops all processing as soon as it has run a bash command. Here is my worker:
class ProductJsonSaver
@queue = :products
def self.perform(id)
product = Product.find(id)
json = `phantomjs…
ankimal
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0
votes
1 answer
How do \ / operator work in ruby Regular expression?
I am using Ruby 1.9.3. Just going thorugh the Ruby tutorials. Now I just got stuck to a statement on which regular expression is working and giving out put also. But confusion with the \/ operators logic.
RegExp-1
Today's date is: 1/15/2013.…
DoLoveSky
- 777
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- 17
0
votes
2 answers
default value are not properly reflected for the same keys from 2 different but closely related ruby code
Please follow the below code :
Part-I
> h = { "a" => 100, "b" => 200 }
=> {"a"=>100, "b"=>200}
> h.default = "Go fish"
=> "Go fish"
> h["a"]
=> 100
> h["z"]
=> "Go fish"
> h.default = proc do |hash, key|
* hash[key] = key + key
> end
=>…
Arup Rakshit
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0
votes
2 answers
how hash key look up works recursively from backend?
I was playing to non-existence key of hash h1.but got surprised when i was seeing some errors and with their resolution.I wanted to know how the recursive call doing the job internally to handle the errors.
Part-I
here when tried h1[2][3] caused…
Arup Rakshit
- 116,827
- 30
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- 317
0
votes
2 answers
numbers as key in ruby 1.9.x syntax
How would I create a hash with numbers as keys under the new ruby syntax? for example {abc: 123} creates a hash with the symbol abc as the key, but {123: 'abc' } throws an exception (as does {123.to_sym: 'abc'}. The exception I see is syntax…
d-coded
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