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When to use .First and when to use .FirstOrDefault with LINQ?

I've searched around and haven't really found a clear answer as to when you'd want to use .First and when you'd want to use .FirstOrDefault with LINQ. ...
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Correct way to close nested streams and writers in Java [duplicate]

... I usually do the following. First, define a template-method based class to deal with the try/catch mess import java.io.Closeable; import java.io.IOException; import java.util.LinkedList; import java.util.List; public abstract cl...
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Python - abs vs fabs

...e about complex numbers. Out of interest, what other classes of things can __builtin__.abs() be successfully applied to? – NPE May 27 '12 at 7:31 ...
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How to view files in binary from bash?

... ...and it's preinstalled on Mac OS X and on Linux. – Sridhar Sarnobat Sep 5 '17 at 22:36 1 ...
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Is it smart to replace boost::thread and boost::mutex with c++11 equivalents?

...ried explaining the quality of boost, then gave up after some time :( ). Smaller reason why I would like to do it is that I would like to learn c++11 features, because people will start writing code in it. So: ...
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float64 with pandas to_csv

...mvent this problem, I recommend you create another CSV file which contains all figures as integers, for example multiplying by 100, 1000 or other factor which turns out to be convenient. Inside your application, read the CSV file as usual and you will get those integer figures back. Then convert tho...
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Difference between method and function in Scala

..., no instance - with a method type. As mentioned above, a Method Value actually has a Function Type. A method type is a def declaration - everything about a def except its body. Value Declarations and Definitions and Variable Declarations and Definitions are val and var declarations, including both...
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Do declared properties require a corresponding instance variable?

... In your interface, you can formally declare an instance variable between the braces, or via @property outside the braces, or both. Either way, they become attributes of the class. The difference is that if you declare @property, then you can implement usin...
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C++ catching all exceptions

... try{ // ... } catch (...) { // ... } will catch all C++ exceptions, but it should be considered bad design. You can use c++11's new current_exception mechanism, but if you don't have the ability to use c++11 (legacy code systems requiring a rewrite), then you have no name...
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How to find the array index with a value?

...code marked as the correct answer but it seems that that code wont work in all versions of IE. This answer works in all versions of IE but I changed the code slightly: var arrayPosition = $.inArray( value, Array ); works perfectly – James Blackburn Dec 13 '13 ...