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Why use argparse rather than optparse?
...recated, and will hopefully go away in the future.
argparse is better for all the reasons listed on its original page (https://code.google.com/archive/p/argparse/):
handling positional arguments
supporting sub-commands
allowing alternative option prefixes like + and /
handling zero-or-more and on...
UIViewController viewDidLoad vs. viewWillAppear: What is the proper division of labor?
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viewDidLoad is things you have to do once. viewWillAppear gets called every time the view appears. You should do things that you only have to do once in viewDidLoad - like setting your UILabel texts. However, you may want to modify a specific part of the view every time the user gets to v...
How to use Greek symbols in ggplot2?
...titute, this also works in places where expression does not work, and even allows other formatting like italics, bold etc.
– Sam
Apr 1 '16 at 14:13
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What is the memory consumption of an object in Java?
...estion to answer:
A JVM is free to store data any way it pleases internally, big or little endian, with any amount of padding or overhead, though primitives must behave as if they had the official sizes.
For example, the JVM or native compiler might decide to store a boolean[] in 64-bit long c...
Difference between framework and static library in xcode4, and how to call them
... is as a framework. To create a "static" framework for iOS, you can essentially take a normal framework and replace the binary with your compiled static library. This is how I distribute one of my libraries, Resty and is how I intend to distribute my libraries in the future.
You may want to look at...
What's the false operator in C# good for?
...rride |, &, true and false in exactly the right way the compiler will call | and & when you write || and &&.
For example, look at this code (from http://ayende.com/blog/1574/nhibernate-criteria-api-operator-overloading - where I found out about this trick; archived version by @Biggs...
How do I limit the number of results returned from grep?
...dless of
the presence of trailing context lines. This enables a calling
process to resume a search.
Note: grep stops reading the file once the specified number of matches have been found!
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Is is possible to check if an object is already attached to a data context in Entity Framework?
... if (attach)
context.AttachTo(entitySetName, entity);
}
You can call it as follows:
User user = new User() { Id = 1 };
II.AttachToOrGet<Users>("Users", ref user);
This works very nicely because it's just like context.AttachTo(...) except you can use the ID trick I cited above each...
What does the LayoutInflater attachToRoot parameter mean?
...e you have already added the child fragment in onCreateView() by mistake. Calling add will tell you that child view is already added to parent Hence IllegalStateException.
Here you are not responsible for adding childView, FragmentManager is responsible. So always pass false in this case.
NOTE: I...
Is it possible to have nested templates in Go using the standard library?
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Yes it is possible. A html.Template is actually a set of template files. If you execute a defined block in this set, it has access to all the other blocks defined in this set.
If you create a map of such template sets on your own, you have basically the same flexibil...