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How Should I Declare Foreign Key Relationships Using Code First Entity Framework (4.1) in MVC3?

...have been searching for resources on how to declare foreign key relationships and other constraints using code first EF 4.1 without much luck. Basically I am building the data model in code and using MVC3 to query that model. Everything works via MVC which is great (kudos to Microsoft!) but now I wa...
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Should functions return null or an empty object?

What is the best practice when returning data from functions. Is it better to return a Null or an empty object? And why should one do one over the other? ...
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List files by last edited date

...o achieve this: alias lt='ls -lht' lt Where -h gives a more readable output. share | improve this answer | follow | ...
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Browser statistics on JavaScript disabled [closed]

I am having a hard time collecting publically available statistics on the percentage of web users that browse with JavaScript disabled. ...
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How can I use numpy.correlate to do autocorrelation?

... To answer your first question, numpy.correlate(a, v, mode) is performing the convolution of a with the reverse of v and giving the results clipped by the specified mode. The definition of convolution, C(t)=∑ -∞ < i < ∞ aivt+i where -∞ < t &l...
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Add directives from directive in AngularJS

...care of adding more directives to the element it is declared on. For example, I want to build a directive that takes care of adding datepicker , datepicker-language and ng-required="true" . ...
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Using awk to remove the Byte-order mark

How would an awk script (presumably a one-liner) for removing a BOM look like? 5 Answers ...
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How do I save and restore multiple variables in python?

... objects to a file and then restore them later. I've tried to use a for loop with pickle and shelve but it didn't work right. ...
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What is the type of lambda when deduced with “auto” in C++11?

I had a perception that, type of a lambda is a function pointer. When I performed following test, I found it to be wrong ( demo ). ...
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Quicksort vs heapsort

Both quicksort and heapsort do in-place sorting. Which is better? What are the applications and cases in which either is preferred? ...