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Why would you ever implement finalize()?
... it needs to be called.
Implement finalize() to do the close() processing if you detect it hasn't been done. Maybe with something dumped to stderr to point out that you're cleaning up after a buggy caller.
It provides extra safety in an exceptional/buggy situation. Not every caller is going to do...
Node.js Mongoose.js string to ObjectId function
...n to turn a string into an objectId in node using mongoose? The schema specifies that something is an ObjectId, but when it is saved from a string, mongo tells me it is still just a string. The _id of the object, for instance, is displayed as objectId("blah") .
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convert a char* to std::string
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what will happen if it is?
– Carson Myers
Jul 28 '09 at 18:04
15
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Android destroying activities, killing processes
... not be resumed until this method
returns. Followed by either onResume() if the activity returns back to
the front, or onStop() if it becomes invisible to the user.
onStop() Called when the activity is no longer visible to the user, because another activity has been resumed and is covering ...
Python dictionary: Get list of values for list of keys
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If mydict is a function call (that returns a dict) then this calls the function multiple times, right?
– endolith
Sep 30 '18 at 3:09
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How to use jQuery to select a dropdown option?
I was wondering if it’s possible to get jQuery to select an <option> , say the 4th item, in a dropdown box?
13 Ans...
Can I control the location of .NET user settings to avoid losing settings on application upgrade?
...As for the second question, it depends on how you deploy the application. If you deploy via a .msi, then there are two hashes in the properties of the setup project (that the msi is built from), the 'upgrade code' and the 'product code'. These determine how the msi can be installed, and if it upgr...
Given two directory trees, how can I find out which files differ by content?
If I want find the differences between two directory trees, I usually just execute:
10 Answers
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html (+css): denoting a preferred place for a line break
...n blocks by space you need to place it between inline-blocks. For example, if spans were styled to become inline-blocks, then <span>Hello </span><span> world</span> will be Helloworld, and <span>Hello</span> <span>world</span> will be normal Hello worl...
Does the default constructor initialize built-in types?
...ization of the class instance. It will only invoke the default constructor if it is user-declared. (That's in C++03. In C++98 - only if the class is non-POD). If the class has no user-declared constructor, then the C() will not call the compiler-provided default constructor, but rather will perform ...