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I need to generate uuid for my rails application. What are the options(gems) I have? [duplicate]

...to be in Ruby 1.8.7. Looks like it was added in 1.9.3: apidock.com/ruby/v1_9_3_392/SecureRandom/uuid/class – existentialmutt Aug 25 '14 at 17:31 2 ...
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Vagrant stuck connection timeout retrying

... I really didn't understand what this does, but it worked. So thank you. – Lavixu Aug 16 '14 at 4:05 1 ...
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Backbone.View “el” confusion

... A views el is where all the event binding takes place. You don't have to use it but if you want backbone to fire events you need to do your rendering work on the el. A views el is a DOM element but it does not have to be a pre-existing element. ...
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How do I use vim registers?

...on Windows (or from "mouse highlight" clipboard on Linux) "*p To access all currently defined registers type :reg share | improve this answer | follow | ...
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Can you use @Autowired with static fields?

... In short, no. You cannot autowire or manually wire static fields in Spring. You'll have to write your own logic to do this. share | improve this answer | ...
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C++ map access discards qualifiers (const)

...k up a key without modifying the map. find() returns an iterator, or const_iterator to an std::pair containing both the key (.first) and the value (.second). In C++11, you could also use at() for std::map. If element doesn't exist the function throws a std::out_of_range exception, in contrast to o...
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What is Prefix.pch file in Xcode?

...uestion has been already answered in thread I'm linking below. It contains all the information you need as well as useful comments. Is it OK to remove Prefix.pch file from the Xcode project? share | ...
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iOS 7 style Blur view

...bove, I recently reworked the blurs in GPUImage to support variable radii, allowing for the complete replication of the blur size in iOS 7's control center view. From that, I created the GPUImageiOS7BlurFilter class that encapsulates the proper blur size and color correction that Apple appears to be...
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sed one-liner to convert all uppercase to lowercase?

I have a textfile in which some words are printed in ALL CAPS. I want to be able to just convert everything in the textfile to lowercase, using sed . That means that the first sentence would then read, 'i have a textfile in which some words are printed in all caps.' ...
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How to get HTTP Response Code using Selenium WebDriver

... the response code of a http request using Selenium and Chrome or Firefox. All you have to do is start either Chrome or Firefox in logging mode. I will show you some examples below. java + Selenium + Chrome Here is an example of java + Selenium + Chrome, but I guess that it can be done in any lang...