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Declare a const array
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Yes, but you need to declare it readonly instead of const:
public static readonly string[] Titles = { "German", "Spanish", "Corrects", "Wrongs" };
The reason is that const can only be applied to a field whose value is known at compile-time. The array ini...
not None test in Python [duplicate]
... not (val is None):
# ...
this is simply part of the Zen of Python: "Readability counts." Good Python is often close to good pseudocode.
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Why is Multiple Inheritance not allowed in Java or C#?
...languages while providing too little benefit.
For a more fun and in-depth read, there are some articles available on the web with interviews of some of the language designers. For example, for .NET, Chris Brumme (who worked at MS on the CLR) has explained the reasons why they decided not to:
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How to fix corrupted git repository?
...t directory of the repository.
# If a remote is not supplied, it will be read from .git/config
#
# For when you have a corrupted local repo, but a trusted remote.
# This script replaces all your history with that of the remote.
# If there is a .git, it is backed up as .git_old, removing the last ...
Resolve promises one after another (i.e. in sequence)?
Consider the following code that reads an array of files in a serial/sequential manner. readFiles returns a promise, which is resolved only once all files have been read in sequence.
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Secure hash and salt for PHP passwords
...shing & checking method.
The theory of the answer is still a good read though.
TL;DR
Don'ts
Don't limit what characters users can enter for passwords. Only idiots do this.
Don't limit the length of a password. If your users want a sentence with supercalifragilisticexpialidocious in it,...
What are the differences between the threading and multiprocessing modules?
I am learning how to use the threading and the multiprocessing modules in Python to run certain operations in parallel and speed up my code.
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What is the difference between HTTP and REST?
After reading a lot about the differences between REST and SOAP, I got the impression that REST is just another word for HTTP. Can someone explain what functionality REST adds to HTTP?
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How to prevent SIGPIPEs (or handle them properly)
...all server program that accepts connections on a TCP or local UNIX socket, reads a simple command and, depending on the command, sends a reply. The problem is that the client may have no interest in the answer sometimes and exits early, so writing to that socket will cause a SIGPIPE and make my serv...
Downloading a picture via urllib and python
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f.write(urllib.urlopen('http://www.gunnerkrigg.com//comics/00000001.jpg').read())
f.close()
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