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Multiple variables in a 'with' statement?
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It is possible in Python 3 since v3.1 and Python 2.7. The new with syntax supports multiple context managers:
with A() as a, B() as b, C() as c:
doSomething(a,b,c)
Unlike the contextlib.nested, this guarantees that a and b will have their __e...
How to insert element into arrays at specific position?
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23 Answers
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Where is Developer Command Prompt for VS2013?
...d to run web.exe file from my developer command prompt in Visual Studio 2013. By default, the command prompt is not installed in Visual Studio 2013.
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Purpose of Activator.CreateInstance with example?
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153
Say you have a class called MyFancyObject like this one below:
class MyFancyObject
{
public in...
Phone: numeric keyboard for text input
...toneSeth Stone
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jquery-ui sortable | How to get it work on iPad/touchdevices?
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3 Answers
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C++ new int[0] — will it allocate memory?
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239
From 5.3.4/7
When the value of the expression in a direct-new-declarator is zero, the alloc...
Enable SQL Server Broker taking too long
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http://rusanu.com/2006/01/30/how-long-should-i-expect-alter-databse-set-enable_broker-to-run/
alter database [<dbname>] set enable_broker with rollback immediate;
shar...
How do you query for “is not null” in Mongo?
...k value"});
db.test.insert({"num":2, "check":null});
db.test.insert({"num":3});
This will return all three documents:
db.test.find();
This will return the first and second documents only:
db.test.find({"check":{$exists:true}});
This will return the first document only:
db.test.find({"check":{$ne:...