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Is there a standard function to check for null, undefined, or blank variables in JavaScript?
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add created_at and updated_at fields to mongoose schemas
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edited Oct 21 '15 at 10:03
answered Oct 20 '15 at 17:25
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What is Cache-Control: private?
...include a Last-Modified date in the response:
Last-Modified: Tue, 16 Oct 2012 03:13:38 GMT
Because the browser knows the date the file was modified, it can perform a conditional request. It will ask the server for the file, but instruct the server to only send the file if it has been modified si...
Warning: Null value is eliminated by an aggregate or other SET operation in Aqua Data Studio
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You would mostly be using COUNT to summarize over a UID. Therefore
COUNT([uid]) will produce t...
Programmatically obtain the phone number of the Android phone
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edited Jul 21 '16 at 12:44
Flimm
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C++, What does the colon after a constructor mean? [duplicate]
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As others have said, it's an initialisation list. You can use it for two things:
Calling base ...
How do I change the android actionbar title and icon
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This is very simple to accomplish
If you want to change it in code, call:
setTitle("My new ti...
Using an RDBMS as event sourcing storage
...oned state-based persistence). Therefore I wouldn't recommend option 1 and 2 at all.
Below is the schema as used in Ncqrs. As you can see, the table "Events" stores the related data as a CLOB (i.e. JSON or XML). This corresponds to your option 3 (Only that there is no "ProductEvents" table because ...
The new keyword “auto”; When should it be used to declare a variable type? [duplicate]
...eType<OtherType>::SomeOtherType();
std::shared_ptr<XyzType> obj2 = std::make_shared<XyzType>(args...);
std::unique_ptr<XyzType> obj2 = std::make_unique<XyzType>(args...);
//With auto. good : auto increases readability here
auto obj1 = new SomeType<OtherType>::Som...
Are std::vector elements guaranteed to be contiguous?
...coming C++0x standard will of course contain this as a requirement.
From n2798 (draft of C++0x):
23.2.6 Class template vector [vector]
1 A vector is a sequence container that supports random access iterators. In addition, it supports (amortized)
constant time insert and erase operations ...