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Line continuation for list comprehensions or generator expressions in python
...t appears at the end of a line, where it either doesn't stand out or needs extra padding, which has to be fixed when line lengths change:
x = very_long_term \
+ even_longer_term_than_the_previous \
+ a_third_term
In such cases, use parens:
x = (very_long_term
+ even_...
Why does C# disallow readonly local variables?
...ether the benefit of getting the compiler to do that checking is worth the extra "fluff" when reading the code and not actually caring about it.
– Jon Skeet
Jan 14 '09 at 20:52
4
...
Best practices for large solutions in Visual Studio (2008) [closed]
...efault.
2. Should "copy local" be on or off?
Off in our experience. The extra copying just adds to the build times.
3. Should every project build to its own folder, or should they all build to the same output folder(they are all part of the same application)
All of our output is put in a single...
TypeError: got multiple values for argument
...sed and delegates the drawing of the box to another function, relaying all extra arguments.
def color_box(color, *args, **kwargs):
painter.select_color(color)
painter.draw_box(*args, **kwargs)
Then the call
color_box("blellow", color="green", height=20, width=30)
will fail because two ...
Rails extending ActiveRecord::Base
...onkey patching is easy and quick. But, the time and effort saved is always extracted back
sometime in the future; with compound interest. These days I limit monkey patching to quickly prototype a solution in the rails console.
...
What does threadsafe mean?
... the definition of thread safety as found of Wikipedia.
3 important things extracted from the links :
“A piece of code is thread-safe if it functions correctly during
simultaneous execution by multiple threads.”
“In particular, it must satisfy the need for multiple threads to
access the same ...
Why are Docker container images so large?
...in the Dockerfile writes a new layer in the image and every layer requires extra space on disk. In order to keep the number layers to a minimum, any file manipulation like install, moving, extracting, removing, etc, should ideally be made under a single RUN instruction
FROM fedora:latest
RUN yum -y...
How are virtual functions and vtable implemented?
...he difference should be neglible. For a class which just contains a single char member, or no members at all, the difference might be notable.
Apart from that, it is important to note that not every call to a virtual function is a virtual function call. If you have an object of a known type, the co...
How can I configure my makefile for debug and release builds?
...(CXX) or $(CC) in all your compile commands.
Then, 'make debug' will have extra flags like -DDEBUG and -g where as 'make' will not.
On a side note, you can make your Makefile a lot more concise like other posts had suggested.
...
Best way to load module/class from lib folder in Rails 3?
... you want to be autoloadable.
# config.autoload_paths += %W(#{config.root}/extras)
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