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Why does !{}[true] evaluate to true in JavaScript?
...cause plain {}[true] is parsed as an empty statement block (not an object literal) followed by an array containing true, which is true.
On the other hand, applying the ! operator makes the parser interpret {} as an object literal, so the following {}[true] becomes a member access that returns undef...
Why is “except: pass” a bad programming practice?
...metimes I just don't care what the errors are and I want to just continue with the code.
16 Answers
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How to read a (static) file from inside a Python package?
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[added 2016-06-15: apparently this doesn't work in all situations. please refer to the other answers]
import os, mypackage
template = os.path.join(mypackage.__path__[0], 'templates', 'temp_file')
share
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Differences between distribute, distutils, setuptools and distutils2?
...t updated" date displayed, so you can check the recency of the manual, and it's quite comprehensive. The fact that it's hosted on a subdomain of python.org of the Python Software Foundation just adds credence to it. The Project Summaries page is especially relevant here.
Summary of tools:
Here's a...
Why must we define both == and != in C#?
...he C# compiler requires that whenever a custom type defines operator == , it must also define != (see here ).
13 Answer...
What's the purpose of using braces (i.e. {}) for a single-line if or loop?
... j++;
i++;
Oh no! Coming from Python, this looks ok, but in fact it isn't, as it's equivalent to:
int j = 0;
for (int i = 0 ; i < 100 ; ++i)
if (i % 2 == 0)
j++;
i++;
Of course, this is a silly mistake, but one that even an experienced programmer could make.
Another very...
When should I use Inline vs. External Javascript?
I would like to know when I should include external scripts or write them inline with the html code, in terms of performance and ease of maintenance.
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Reference requirements.txt for the install_requires kwarg in setuptools setup.py file
I have a requirements.txt file that I'm using with Travis-CI. It seems silly to duplicate the requirements in both requirements.txt and setup.py , so I was hoping to pass a file handle to the install_requires kwarg in setuptools.setup .
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Fastest Way to Serve a File Using PHP
...ying to put together a function that receives a file path, identifies what it is, sets the appropriate headers, and serves it just like Apache would.
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Visual Studio 2010 isn't building before a run when there are code changes
I've been using using F5 (Start Debugging) for years to build the code (if its out of date), and then debug. This was working on VS 2010 also, however today it just start debugging without a build. Say I do a clean on the project, and then hit F5 instead of building it so it can run it throws an err...