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Map function in MATLAB?
...rrayfun(@(x) x^2, 1:10)
y =
1 4 9 16 25 36 49 64 81 100
There are two other built-in functions that behave similarly: cellfun (which operates on elements of cell arrays) and structfun (which operates on each field of a structure).
However, these functions are oft...
How can I get the current page's full URL on a Windows/IIS server?
...because you are under IIS,
$_SERVER['PATH_INFO']
is what you want, based on the URLs you used to explain.
For Apache, you'd use $_SERVER['REQUEST_URI'].
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What is the curiously recurring template pattern (CRTP)?
...
In short, CRTP is when a class A has a base class which is a template specialization for the class A itself. E.g.
template <class T>
class X{...};
class A : public X<A> {...};
It is curiously recurring, isn't it? :)
Now, what does this give you? T...
How can I get dictionary key as variable directly in Python (not by searching from value)?
... this are not turning up anything other than how to get a dictionary's key based on its value which I would prefer not to use as I simply want the text/name of the key and am worried that searching by value may end up returning 2 or more keys if the dictionary has a lot of entries... what I am tryin...
Convert pandas dataframe to NumPy array
...ension types are correctly converted.
a = pd.array([1, 2, None], dtype="Int64")
a
<IntegerArray>
[1, 2, <NA>]
Length: 3, dtype: Int64
# Wrong
a.to_numpy() ...
Benefits of EBS vs. instance-store (and vice-versa) [closed]
...can still fail - not a silver bullet
Keep in mind that any piece of cloud-based infrastructure can fail at any time. Plan your infrastructure accordingly. While EBS-backed instances provide certain level of durability compared to ephemeral storage instances, they can and do fail. Have an AMI fro...
Using GZIP compression with Spring Boot/MVC/JavaConfig with RESTful
We use Spring Boot/MVC with annotation-based java-config for series of RESTful services and we want to selectively enable HTTP GZIP stream compression on some API responses.
...
Debug Error \"pure virtual function call\" 原因解析 - 更多技术 - 清泛...
...个在基类构造函数中间接调用纯虚函数的例子：
class Base
{
public:
Base(){callVirtual();}
void callVirtual(){virtualFunc();}
virtual void virtualFunc() = 0;
};
class Derived: public Base
{
public:
virtual void virtualFunc(){}
};
Derived d; //构造过程中调...
Getting attributes of a class
... be dealt with in a number of ways, the easiest of which is just to filter based on name.
>>> attributes = inspect.getmembers(MyClass, lambda a:not(inspect.isroutine(a)))
>>> [a for a in attributes if not(a[0].startswith('__') and a[0].endswith('__'))]
[('a', '34'), ('b', '12')]
...
How to convert Milliseconds to “X mins, x seconds” in Java?
...
Based on @siddhadev's answer, I wrote a function which converts milliseconds to a formatted string:
/**
* Convert a millisecond duration to a string format
*
* @param millis A duration to convert to a stri...