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What's the $unwind operator in MongoDB?
...NoSQL" approach to data storage, so perish the thoughts of selects, joins, etc. from your mind. The way that it stores your data is in the form of documents and collections, which allows for a dynamic means of adding and obtaining the data from your storage locations.
That being said, in order to u...
How to read the output from git diff?
...ry (in commit 1088261f in git.git repository):
diff --git a/builtin-http-fetch.c b/http-fetch.c
similarity index 95%
rename from builtin-http-fetch.c
rename to http-fetch.c
index f3e63d7..e8f44ba 100644
--- a/builtin-http-fetch.c
+++ b/http-fetch.c
@@ -1,8 +1,9 @@
#include "cache.h"
#include "wal...
Override Java System.currentTimeMillis for testing time sensitive code
...gleton version:
Replace Calendar.getInstance() with Clock.getInstance().getCalendarInstance().
Replace new Date() with Clock.getInstance().newDate()
Replace System.currentTimeMillis() with Clock.getInstance().currentTimeMillis()
(etc as required)
Once you've taken that first step, you can repla...
What are inline namespaces for?
...; : my_special_vector<MyOtherType> {
// ...
};
// ...etc...
} // namespace std
This is perfectly valid code where the user supplies its own implementation of a vector for a set of type where she apparently knows a more efficient implementation than the one found in (her copy ...
Database, Table and Column Naming Conventions? [closed]
...ut people or multiple persons is called People, PersonCollection, Persons, etc.
– Triynko
Apr 23 '10 at 16:15
5
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Is it ever advantageous to use 'goto' in a language that supports loops and functions? If so, why?
...tartOuter = true;
if (restartOuter) {
i = -1;
}
}
etc
etc
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prototype based vs. class based inheritance
... lots of singleton objects. In browser DOM, you find that window, document etc all singleton objects. Also, JavaScript is loosely typed dynamic language (as opposed to say Python which is strongly typed, dynamic language), as a result, a concept of object extension was implemented through the use of...
Understanding the Event Loop
...ts that are occurring (clicks on UI, files read, networks packets received etc.)
When your code completes, it is removed from the event loop, and the host process return to checking it, to see if there are more code to run. The event loop contains two event handler more: one to be executed now (the...
Interfaces — What's the point?
...deep dish ingredients in system
break;
//.... etc.
}
}
}
However, deep dish pizzas (in C# terms) may require different properties to be set in the Prepare() method than stuffed crust, and thus you end up with a lot of optional properties, and the class does...
How to access property of anonymous type in C#?
...an array into a list, e.g.
var nodes = (new[] { new { Checked = false, /* etc */ } }).ToList();
Then you'll be able to access it like:
nodes.Any(n => n.Checked);
Because of the way the compiler works, the following then should also work once you have created the list, because the anonymous ...