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How can I rename a field for all documents in MongoDB?
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and if I'm getting it upsert:true will create field name if field name does not exists, defaults to false.
– IGRACH
Jan 1 '15 at 21:43
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Using LINQ to remove elements from a List
...ly need to do it based on another collection, I'd use a HashSet, RemoveAll and Contains:
var setToRemove = new HashSet<Author>(authors);
authorsList.RemoveAll(x => setToRemove.Contains(x));
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How to select .NET 4.5.2 as a target framework in Visual Studio
...e building apps that target
the .NET Framework 4.5.2 through Visual Studio and third party IDEs.
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How to get position of a certain element in strings vector, to use it as an index in ints vector?
...C++11 you can use std::distance in place of subtraction for both iterators and pointers:
ptrdiff_t pos = distance(Names.begin(), find(Names.begin(), Names.end(), old_name_));
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SQLite select where empty?
...n I select records where some_column is empty?
Empty counts as both NULL and "".
4 Answers
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How do I reverse a C++ vector?
...ed Jan 16 '12 at 8:46
Ivaylo StrandjevIvaylo Strandjev
62.1k1313 gold badges104104 silver badges159159 bronze badges
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Allow anything through CORS Policy
How can I disable cors? For some reason I wild carded the allowed origins and headers yet my ajax requests still complain that the origin was not allowed by my CORS policy....
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How to Resize a Bitmap in Android?
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suppose you have large resolution image say 1200x1200 and when you display this, it will be full in the imageview. If i scale it down say 75% and the screen is so that it displays scaled image also fully in imageview, what should be done for such screens?
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Accessing UI (Main) Thread safely in WPF
...e code given above, the code works perfectly when I go into the debug mode and manually do stepovers, but the code crashes when I run the application without debug. I am not sure what to lock here that is causing a problem.
– l46kok
Jul 24 '12 at 6:54
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Add vertical whitespace using Twitter Bootstrap?
...ion in them. This is because those classes
are applied from min-width: 0 and up, and thus are not bound by a
media query. The remaining breakpoints, however, do include a
breakpoint abbreviation.
The classes are named using the format {property}{sides}-{size} for xs
and {property}{sides...