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How do I run a Ruby file in a Rails environment?

...ent. rails runner almost does what I want to do, but I'd like to just give it the file name and arguments. I'm pretty sure this is possible since I've done it before. Can someone remind me how to do this? ...
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Inversion of Control vs Dependency Injection

According to the paper written by Martin Fowler , inversion of control is the principle where the control flow of a program is inverted: instead of the programmer controlling the flow of a program, the external sources (framework, services, other components) take control of it. It's like we plug so...
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How do I perform a Perl substitution on a string while keeping the original?

...g using a regular expression and store the value in a different variable, without changing the original? 7 Answers ...
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node.js fs.readdir recursive directory search

...se that we could introduce recursion and call the read directory function with the next directory to read, but am a little worried about it not being async... ...
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How to split a string and assign it to variables

In Python it is possible to split a string and assign it to variables: 9 Answers 9 ...
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Intro to GPU programming [closed]

... Check out CUDA by NVidia, IMO it's the easiest platform to do GPU programming. There are tons of cool materials to read. http://www.nvidia.com/object/cuda_home.html Hello world would be to do any kind of calculation using GPU. Hope that helps. ...
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What's the most elegant way to cap a number to a segment? [closed]

... The way you do it is pretty standard. You can define a utility clamp function: /** * Returns a number whose value is limited to the given range. * * Example: limit the output of this computation to between 0 and 255 * (x * 255).clamp(...
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How to make Entity Framework Data Context Readonly

I need to expose an Entity Framework Data Context to 3rd party plugins. The purpose is to allow these plugins to fetch data only and not to let them issue inserts, updates or deletes or any other database modification commands. Hence how can I make a data context or entity readonly. ...
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Oracle query to fetch column names

...or tables owned by all users. Tablespace is not equivalent to a schema, neither do you have to provide the tablespace name. Providing the schema/username would be of use if you want to query ALL_TAB_COLS or DBA_TAB_COLS for columns OF tables owned by a specific user. in your case, I'd imagine the ...
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How to correctly save instance state of Fragments in back stack?

...e instance state by overriding onSaveInstanceState() and restore in onActivityCreated(): class MyFragment extends Fragment { @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); ... if (savedInstanceState ...