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How to configure Ruby on Rails with no database?

...ent need for a database. I know I could create an empty database in MySQL and go from there, but does anyone know a better way to run Rails without a database? ...
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How to analyze a java thread dump?

I am trying to understand more about java, especially about memory management and threads. For this reason I have recently found interest in looking at thread dumps. ...
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How to find out if an item is present in a std::vector?

... @bobobobo: OOP has nothing to do with members vs. non-members. And there is a widespread school of thought that if something does not have to be a member, or when it does not give any advantage when implemented as a member, than it should not be a member; std::vector<>::find() woul...
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Setting log level of message at runtime in slf4j

...ng log4j, the Logger.log(Priority p, Object message) method is available and can be used to log a message at a log level determined at runtime. We're using this fact and this tip to redirect stderr to a logger at a specific log level. ...
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Check if Key Exists in NameValueCollection

Is there a quick and simple way to check if a key exists in a NameValueCollection without looping through it? 12 Answers ...
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Execute code when Django starts ONCE only?

...ou want to execute code in the top-level urls.py. That module is imported and executed once. urls.py from django.confs.urls.defaults import * from my_app import one_time_startup urlpatterns = ... one_time_startup() sha...
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How to use LINQ to select object with minimum or maximum property value

... Probably a little slower than just implementing IComparable and using Min (or a for loop). But +1 for a O(n) linqy solution. – Matthew Flaschen May 27 '09 at 6:07 4...
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What are the basic rules and idioms for operator overloading?

... operators are merely syntactic sugar, their actual work could be done by (and often is forwarded to) plain functions. But it is important that you get this boiler-plate code right. If you fail, either your operator’s code won’t compile or your users’ code won’t compile or your users’ code...
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How do I capitalize first letter of first name and last name in C#?

Is there an easy way to capitalize the first letter of a string and lower the rest of it? Is there a built in method or do I need to make my own? ...
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How to grep and replace

I need to recursively search for a specified string within all files and subdirectories within a directory and replace this string with another string. ...