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Detect if a NumPy array contains at least one non-numeric value?
...ich is non-numeric. If a non-numeric value is found I will raise an error (because the calculation should only return a numeric value). The number of dimensions of the input array is not known in advance - the function should give the correct value regardless of ndim. As an extra complication the in...
Python list subtraction operation
...it__(self, *args):
super(MyList, self).__init__(args)
def __sub__(self, other):
return self.__class__(*[item for item in self if item not in other])
you can then use it like:
x = MyList(1, 2, 3, 4)
y = MyList(2, 5, 2)
z = x - y
But if you don't absolutely need list prop...
How do I pass command line arguments to a Node.js program?
I have a web server written in Node.js and I would like to launch with a specific folder. I'm not sure how to access arguments in JavaScript. I'm running node like this:
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How to do associative array/hashing in JavaScript
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Use JavaScript objects as associative arrays.
Associative Array: In simple words associative arrays use Strings instead of Integer numbers as index.
Create an object with
var dictionary = {};
JavaScript allows you to add properties to ob...
How to define custom configuration variables in rails
I was wondering how to add custom configuration variables to a rails application and how to access them in the controller, for e.g I wanna be able to define an upload_directory in the configuration files say development.rb and be able to access it in one of my controllers.
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How to pass all arguments passed to my bash script to a function of mine? [duplicate]
Let's say I have defined a function abc() that will handle the logic related to analyzing the arguments passed to my script.
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Why implement interface explicitly?
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If you implement two interfaces, both with the same method and different implementations, then you have to implement explicitly.
public interface IDoItFast
{
void Go();
}
public interface IDoItSlow
{
void Go();
}
public class JustDoIt : IDoItFast, I...
Skip callbacks on Factory Girl and Rspec
I'm testing a model with an after create callback that I'd like to run only on some occasions while testing. How can I skip/run callbacks from a factory?
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Facebook share button and custom text [closed]
Is there any way to make facebook share button which post custom text on the wall or news feed?
9 Answers
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How many threads is too many?
...h action of into a separate thread when the request is received. I do this because almost every request makes a database query. I am using a threadpool library to cut down on construction/destruction of threads.
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