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How to declare std::unique_ptr and what is the use of it?
...t> p = make_unique<int>(42);
// Going out of scope...
}
// I did not leak my integer here! The destructor of unique_ptr called delete
Now unique_ptr is a smart pointer that models unique ownership, meaning that at any time in your program there shall be only one (owning) pointer to th...
How exactly does a generator comprehension work?
...type 'generator' has no len()
>>> # We extract each item out individually. We'll do it manually first.
...
>>> next(filtered_gen)
5
>>> next(filtered_gen)
9
>>> next(filtered_gen)
6
>>> next(filtered_gen) # Should be all out of items and give an error
Tr...
What's the false operator in C# good for?
...
You can use it to override the && and || operators.
The && and || operators can't be overridden, but if you override |, &, true and false in exactly the right way the compiler will call | and & when you write || and &&a...
Node.js - use of module.exports as a constructor
...t they to can act just like Objects (technically they are Objects). That said your question about using the new keywords has a simple answer: Yes. I'll illustrate...
Module exports
You can either use the exports variable provided to attach properties to it. Once required in another module those as...
How do you create nested dict in Python?
...he next step creating a dictionary on row_key
d[row_key] = {}
for idx, col in enumerate(row):
d[row_key][idx] = col
According to your comment:
may be above code is confusing the question. My problem in nutshell: I
have 2 files a.csv b.csv, a.csv has 4 columns i j k l, b.cs...
How do I limit the number of results returned from grep?
... domain updated:
[132116.568942] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[132116.568944] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[132116.568945] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[132116.568...
Are static class instances unique to a request or a server in ASP.NET?
...uest, or are they instantiated whenever needed and GCed whenever the GC decides to disposed of them?
5 Answers
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Setting Short Value Java
I am writing a little code in J2ME. I have a class with a method setTableId(Short tableId) . Now when I try to write setTableId(100) it gives compile time error. How can I set the short value without declaring another short variable?
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Backing beans (@ManagedBean) or CDI Beans (@Named)?
...
CDI is preferred over plain JSF because CDI allows for JavaEE-wide dependency injection. You can also inject POJOs and let them be managed. With JSF you can only inject a subset of what you can with CDI.
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Unignore subdirectories of ignored directories in Git
...tuff/keep/
!/uploads/rubbish/stuff/keep/*
To include subdirectories inside /uploads/rubbish/stuff/keep/ add the third line:
!/uploads/rubbish/stuff/keep/**/*
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