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Is if(items != null) superfluous before foreach(T item in items)?
...roduces less memory pressure. Enumerable.Empty<string> would be even more preferable because it caches the empty array it generates and re-uses it.
– Eric Lippert
Jun 23 '11 at 14:23
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Best way to do multi-row insert in Oracle?
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Being picky, but the formatting makes more sense if you put "union all" at the end of each select line (except for the last).
– Jamie
Apr 25 '17 at 20:34
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MPICH vs OpenMPI
...rts the Cray Gemini interconnect, but its usage is not supported by Cray. More recently, MPICH supported InfiniBand through a netmod (now deprecated), but MVAPICH2 has extensive optimizations that make it the preferred implementation in nearly all cases.
Feature Support from the Latest MPI Standar...
How to append rows to an R data frame
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Update
Not knowing what you are trying to do, I'll share one more suggestion: Preallocate vectors of the type you want for each column, insert values into those vectors, and then, at the end, create your data.frame.
Continuing with Julian's f3 (a preallocated data.frame) as the fastes...
How to unit test abstract classes: extend with stubs?
...ually are very very very minimal (inherit from the abstract class) and not more.Then, in your Unit Test you can call the abstract method you want to test.
You should test abstract class that contain some logic like all other classes you have.
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Deleting a resource using http DELETE
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Toggle Checkboxes on/off
...put[type=checkbox]').trigger('click'); mentioned by @2astalavista below is more succinct and also triggers the "change" event.
– here
Aug 27 '14 at 5:34
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Prevent direct access to a php include file
...essible:
Deny from all
If you actually have full control of the server (more common these days even for little apps than when I first wrote this answer), the best approach is to stick the files you want to protect outside of the directory that your web server is serving from. So if your app is in...
Naming convention - underscore in C++ and C# variables
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The underscore is simply a convention; nothing more. As such, its use is always somewhat different to each person. Here's how I understand them for the two languages in question:
In C++, an underscore usually indicates a private member variable.
In C#, I usually see it ...