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Python __str__ versus __unicode__
...eady doing it. If you have from __future__ import unicode_literals at the top of your file, there's a good chance you're returning a unicode without even knowing it.
What about Python 3?
Python 3 does not use __unicode__(). However, if you implement __str__() so that it returns unicode under eith...
What are the functional differences between NW.js, Brackets-Shell and Electron?
... alternative 'wrappers' to run HTML/CSS/JS applications as stand-alone desktop applications. The three viable options I have run across so far, are NW.js (formerly node-webkit), brackets-shell , and Electron (formerly atom-shell).
...
How to avoid “if” chains?
...de that relies on short-cut evaluation and may prompt them to reseach this topic which in turn would help them on their way to eventually become senior programmers. So clearly a win-win: decent code and somebody learned something from reading it.
– x4u
Jun 27 '...
Why is it bad style to `rescue Exception => e` in Ruby?
...fior8u8t4ruyf8ihiure"
rescue Exception
puts "I refuse to fail or be stopped!"
end
end
Rescuing from Exception isn't even the default. Doing
begin
# iceberg!
rescue
# lifeboats
end
does not rescue from Exception, it rescues from StandardError. You should generally specify something m...
How to write the Fibonacci Sequence?
...en't noticed anyone else coming up with my specific solution (although the top answer gets close, but still less elegant), so here it is, with comments describing the first iteration, because I think that may help readers understand:
def fib():
a, b = 0, 1
while True: # First ite...
How to declare a structure in a header that is to be used by multiple files in c?
...s.
In C++, this could lead to interesting complication, but this is out of topic (no C++ tag), so I won't elaborate.
then how to declare that structure as extern in both the files. ?
I fail to see the point, perhaps, but Greg Hewgill has a very good answer in his post How to declare a structure in a...
Instance variables vs. class variables in Python
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Uses for Optional
.... First, it goes against the main design goal of Optional as stated at the top. Second, it doesn't add any value.
There are three ways to deal with the absence of a value in an Optional: to provide a substitute value, to call a function to provide a substitute value, or to throw an exception. If yo...
Spring MVC: How to perform validation?
... override it with "setValidator". If you want to add a custom validator on top, just instantiate it and use it, or inject it (if it is a Spring component). If you still have problems after checking google and Spring doc, you should post a new question.
– Jerome Dalbert
...
How is “=default” different from “{}” for default constructor and destructor?
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