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What's the best way to inverse sort in scala?
...e by method sorted with an implicit Ordering, which you may make explicit, and Ordering has a reverse (not the list reverse below)
You can do
list.sorted(theOrdering.reverse)
If the ordering you want to reverse is the implicit ordering, you can get it by implicitly[Ordering[A]] (A the type you'r...
What is the python keyword “with” used for? [duplicate]
...ources (like file streams). It is similar to the using statement in VB.NET and C#. It allows you to ensure that a resource is "cleaned up" when the code that uses it finishes running, even if exceptions are thrown. It provides 'syntactic sugar' for try/finally blocks.
From Python Docs:
The with sta...
Mediator Vs Observer Object-Oriented Design Patterns
...ave been reading the Gang Of Four , in order to solve some of my problems and came across the Mediator pattern.
8 Answer...
Nested classes' scope?
I'm trying to understand scope in nested classes in Python. Here is my example code:
6 Answers
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Forward an invocation of a variadic function in C
...iable number of arguments, you can't do it. See http://c-faq.com/varargs/handoff.html.
Example:
void myfun(const char *fmt, va_list argp) {
vfprintf(stderr, fmt, argp);
}
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Convert string to Python class object?
... open to anything. If you have malicious, evil users who might maliciously and evilly pass bad values to eval, they can just edit the python source. Since they can just edit the python source, the door is, was, and always will be open.
– S.Lott
Sep 19 '13 at 12...
Get all related Django model objects
...
It doesn't show ManyToMany connections and was deprecated. In Django 1.8+ it's recommended to be replaced with _meta.get_fields(): docs.djangoproject.com/en/1.10/ref/models/meta/… (see reverse in the _get_fields() source also)
– int_ua
...
Python list subtraction operation
...set(x) - set(y))
>>> z
[0, 8, 2, 4, 6]
Or you might just have x and y be sets so you don't have to do any conversions.
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error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in m
...y problem but none helped. I tried clean, rebuild. Reinstalled visual 2010 and change from professional to ultimate. But still I dont know why I have this error.
My project look like this:
1 Exe Solution to test my static library.
1 Dll Solution static library.
Code which is converted to dll is usi...
Which method performs better: .Any() vs .Count() > 0?
...Linq namespace, we can now extend our IEnumerable's to have the Any() and Count() extension methods .
9 Answers
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