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What is the difference between up-casting and down-casting with respect to class variable
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@awksp This is an excellent and articulate answer. Pretty much sums up everything I need to know about Casting.
– Gautham Honnavara
Nov 16 '16 at 20:14
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Unit Testing C Code [closed]
...t seams into code that is otherwise encapsulated.
Michael Feathers has an excellent book about testing legacy code. In one chapter he covers techniques for dealing with non-OO code which I highly recommend.
Edit: I've written a blog post about unit testing procedural code, with source available o...
How to watch for array changes?
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Outstanding answer here. The ObservableArray's class is excellent. +1
– dooburt
Jun 13 '16 at 9:31
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Rails: Default sort order for a rails model?
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A quick update to Michael's excellent answer above.
For Rails 4.0+ you need to put your sort in a block like this:
class Book < ActiveRecord::Base
default_scope { order('created_at DESC') }
end
Notice that the order statement is placed in a blo...
How can I use redis with Django?
...There's a backend here https://github.com/sebleier/django-redis-cache/ and excellent documentation in the Django docs here: https://docs.djangoproject.com/en/1.3/topics/cache/ .
I've recently started using https://github.com/erussell/django-redis-status to monitor my cache - works a charm. (Configu...
Why are unsigned int's not CLS compliant?
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Excellent explanation from the mathematical perspective!
– dizarter
Jun 18 '15 at 13:42
add a commen...
How to use Greek symbols in ggplot2?
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Here is a link to an excellent wiki that explains how to put greek symbols in ggplot2. In summary, here is what you do to obtain greek symbols
Text Labels: Use parse = T inside geom_text or annotate.
Axis Labels: Use expression(alpha) to get gr...
What is the difference between JAX-RS and JAX-WS?
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Short and crisp explanation!! Excellent.
– Saurabh Rai
Jan 25 '17 at 18:02
add a comment
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Is there a software-engineering methodology for functional programming? [closed]
...onal languages use explicit types, but the How To Design Programs book, an excellent book for learning Scheme/Lisp/Clojure, relies heavily on "data descriptions", which are closely related to types.
So what is the methodology for a systematic (model-based ?) design of a functional application, ...
How to write a Python module/package?
...module import *
>>> myfunc()
Hello!
Assuming Python 3, there is excellent documentation at: Modules
In terms of naming conventions for packages and modules, the general guidelines are given in PEP-0008 - please see Package and Module Names
Modules should have short, all-lowercase names....