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Foreach loop, determine which is the last iteration of the loop
...to iterate through the collection. While this might not be a problem for small collections, if it gets large it could have performance implications. It will also fail if the list contains duplicate items. In this cases something like this may be more appropriate:
int totalCount = result.Count();
fo...
'const int' vs. 'int const' as function parameters in C++ and C
...ation relative to the type consistent and easy to remember (it also anecdotally seems to make it easier to teach to beginners).
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Install a Python package into a different directory using pip?
...
Use:
pip install --install-option="--prefix=$PREFIX_PATH" package_name
You might also want to use --ignore-installed to force all dependencies to be reinstalled using this new prefix. You can use --install-option to multiple times to a...
What's the pythonic way to use getters and setters?
...
Try this: Python Property
The sample code is:
class C(object):
def __init__(self):
self._x = None
@property
def x(self):
"""I'm the 'x' property."""
print("getter of x called")
return self._x
@x.setter
def x(self, value):
print("sette...
What's the difference between “Request Payload” vs “Form Data” as seen in Chrome dev tools Network t
... - or to be more precise: payload body of a HTTP Request
- is the data normally send by a POST or PUT Request.
It's the part after the headers and the CRLF of a HTTP Request.
A request with Content-Type: application/json may look like this:
POST /some-path HTTP/1.1
Content-Type: application/json
...
Byte order mark screws up file reading in Java
...va. Some of the files may have a byte order mark in the beginning, but not all. When present, the byte order gets read along with the rest of the first line, thus causing problems with string compares.
...
In Python, when to use a Dictionary, List or Set?
...tion of unique elements, use a set. (For example, when you want the set of all the words used in a document).
When you want to collect an immutable ordered list of elements, use a tuple. (For example, when you want a (name, phone_number) pair that you wish to use as an element in a set, you would n...
Subprocess changing directory
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@The_Diver That's why cd must be implemented as internal shell command. There's no other way to do it. Internal shell commands are executed within the same process as the shell. What I meant by subshell is the shell executed for ...
Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple
...f the work can
be avoided. With a slightly smarter
linker than is typically used, it is
possible to remove some of these
inefficiencies. This is discussed in
§6.2.3 and §6.2.5.
Since the report was written in 2006 one would hope that many of the recommendations would have been incorpor...
How do I check OS with a preprocessor directive?
...Unix (Linux, *BSD, Mac OS X)
See this related question on some of the pitfalls of using this check.
unix
__unix
__unix__
Mac OS X
__APPLE__
__MACH__
Both are defined; checking for either should work.
Linux
__linux__
linux Obsolete (not POSIX compliant)
__linux Obsolete (not POSIX compliant)
...