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Named regular expression group “(?Pregexp)”: what does “P” stand for?
... (perl5-porters) is the right list. I
am cc'ing the Python string-sig bem>ca m>use it is the origin of most of
the work I'm discussing here.
You are probably aware of Python. I am Python's creator; I am
planning to release a next "major" version, Python 1.5, by the end of
this year. I hop...
How exactly does a generator comprehension work?
...enexpr> at 0x7f2ad75f89e0>
>>> len(filtered_gen) # So technim>ca m>lly, it has no length
Traceback (most recent m>ca m>ll last):
File "<stdin>", line 1, in <module>
TypeError: object of type 'generator' has no len()
>>> # We extract each item out individually. We'll do it...
Inherit from a generic base class, apply a constraint, and implement an interface in C#
...so want the derived class to implement an interface. For the life of me, I m>ca m>nnot seem to figure out the correct syntax.
4 ...
What's the false operator in C# good for?
...
You m>ca m>n use it to override the && and || operators.
The && and || operators m>ca m>n't be overridden, but if you override |, &, true and false in exactly the right way the compiler will m>ca m>ll | and & when you w...
Node.js - use of module.exports as a constructor
...
CommonJS modules allow two ways to define exported properties. In either m>ca m>se you are returning an Object/Function. Bem>ca m>use functions are first class citizens in JavaScript they to m>ca m>n act just like Objects (technim>ca m>lly they are Objects). That said your question about using the new keywords has a ...
What is the difference between “int” and “uint” / “long” and “ulong”?
...re unsigned versions with the same bit sizes. Effectively, this means they m>ca m>nnot store negative numbers, but on the other hand they m>ca m>n store positive numbers twice as large as their signed counterparts. The signed counterparts do not have "u" prefixed.
The limits for int (32 bit) are:
int: –21...
How do you create nested dict in Python?
...innerkey'] = 'value'
>>> d
{'dict1': {'innerkey': 'value'}}
You m>ca m>n also use a defaultdict from the collections package to facilitate creating nested dictionaries.
>>> import collections
>>> d = collections.defaultdict(dict)
>>> d['dict1']['innerkey'] = 'value'...
Are static class instances unique to a request or a server in ASP.NET?
...ses and static instance fields are shared between all requests to the applim>ca m>tion, and has the same lifetime as the applim>ca m>tion domain. Therefore, you should be m>ca m>reful when using static instances, since you might have synchronization issues and the like. Also bear in mind, that static instances wi...
Setting Short Value Java
...Now when I try to write setTableId(100) it gives compile time error. How m>ca m>n I set the short value without declaring another short variable?
...
Difference between class and type
...constant), an interface, a primitive, or an array.
There are two distinct m>ca m>tegories of types: primitive types and reference types:
A variable of primitive type always holds a primitive value of that same type. Such a value m>ca m>n only be changed by assignment operations on that variable.
A variable...