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Skipping Iterations in Python
I have a loop going, but there is the possibility for exceptions to be raised inside the loop. This of course would stop my program all together. To prevent that I catch the exceptions and handle them. But then the rest of the iteration runs even though an exception occurred. Is there a keyword to u...
Direct casting vs 'as' operator?
...ll.
string s = o as string; // 2
Assigns null to s if o is not a string or if o is null. For this reason, you cannot use it with value types (the operator could never return null in that case). Otherwise, assigns o to s.
string s = o.ToString(); // 3
Causes a NullReferenceException if o is nul...
Manually raising (throwing) an exception in Python
...w/raise an exception in Python?
Use the most specific Exception constructor that semantically fits your issue.
Be specific in your message, e.g.:
raise ValueError('A very specific bad thing happened.')
Don't raise generic exceptions
Avoid raising a generic Exception. To catch it, you'll hav...
jQuery validate: How to add a rule for regular expression validation?
...e my existing ASP.NET solution to use jQuery instead of the ASP.NET validators. I am missing a replacement for the regular expression validator. I want to be able to do something like this:
...
How does the HyperLogLog algorithm work?
I've been learning about different algorithms in my spare time recently, and one that I came across which appears to be very interesting is called the HyperLogLog algorithm - which estimates how many unique items are in a list.
...
Can you supply arguments to the map(&:method) syntax in Ruby?
You're probably familiar with the following Ruby shorthand ( a is an array):
7 Answers
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Difference between Pig and Hive? Why have both? [closed]
My background - 4 weeks old in the Hadoop world. Dabbled a bit in Hive, Pig and Hadoop using Cloudera's Hadoop VM. Have read Google's paper on Map-Reduce and GFS ( PDF link ).
...
How do you render primitives as wireframes in OpenGL?
... switch on,
glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
to go back to normal.
Note that things like texture-mapping and lighting will still be applied to the wireframe lines if they're enabled, which can look weird.
sha...
How to install ia32-libs in Ubuntu 14.04 LTS (Trusty Tahr)
... OK. But when I tried to compile some C code, I encounter the following error. The error seems to be due to the OS lacking the 32-bit architecture support. The error output is as following:
...
How to make rpm auto install dependencies
...
Create a (local) repository and use yum to have it resolve the dependencies for you.
The CentOS wiki has a nice page providing a how-to on this. CentOS wiki HowTos/CreateLocalRepos.
Summarized and further minimized (not ideal, but quickest):
C...