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How to securely save username/password (local)?
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If you are just going to verify/validate the entered user name and password, use the Rfc2898DerivedBytes class (also known as Password Based Key Derivation Function 2 or PBKDF2). This is more secure than using encryption like Triple DES or AES because there i...
How to get different colored lines for different plots in a single figure?
I am using matplotlib to create the plots. I have to identify each plot with a different color which should be automatically generated by Python.
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How do I set up DNS for an apex domain (no www) pointing to a Heroku app?
...ic solution is to not use them at all. As a fallback measure, some DNS providers offer to setup an HTTP redirect for you. In that case, set it up so that example.com is an HTTP redirect to www.example.com.
Some DNS providers have come forward with custom solutions that allow CNAME-like behavior on ...
What does @@variable mean in Ruby?
...would not be.
[Update]
As Phrogz mentions in the comments, it's a common idiom in Ruby to track class-level data with an instance variable on the class itself. This can be a tricky subject to wrap your mind around, and there is plenty of additional reading on the subject, but think about it as mod...
What is a ViewModelLocator and what are its pros/cons compared to DataTemplates?
...) container. This happens automatically when the container is asked to provide (resolve) an instance of the View class. The container injects the ViewModel into the View by calling a constructor of the View which accepts a ViewModel parameter; this scheme is called inversion of control (IoC).
Benef...
Is Python strongly typed?
...@gsingh2011 Truthiness is useful and not weak typing on its own, but an accidental if isValid(value) - 1 can leak. The boolean is coerced into integer, which is then evaluated as a truthy value. False - 1 becomes truthy and True - 1 becomes falsy, leading to an embarrassingly difficult two-layered o...
Representing graphs (data structure) in Python
...ime access. But how to extend the dictionary that you used to map both nodeID and weight?
– orezvani
Jul 28 '16 at 14:03
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Change date of git tag (or GitHub Release based on it)
... environment variable GIT_COMMITTER_DATE before this is
# run, we override the default tag date. Note that if you
# specify the variable on a different line, it will apply to
# the current environment. This isn't desired as probably
# don't want your future tags to also have that pas...
Setting an object to null vs Dispose()
...ou generally want to release them as soon as you can. You should implement IDisposable whenever your type "owns" an unmanaged resource, either directly (usually via an IntPtr) or indirectly (e.g. via a Stream, a SqlConnection etc).
Garbage collection itself is only about memory - with one little tw...
Catching error codes in a shell pipe
...end to a 4-part or N-part pipeline.
Simple experimentation with 'set -e' didn't help.
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