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When is it practical to use Depth-First Search (DFS) vs Breadth-First Search (BFS)? [closed]
...at 17:56
Gilles 'SO- stop being evil'Gilles 'SO- stop being evil'
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Is it OK to use == on enums in Java?
...t OK to use == on enums in Java, or do I need to use .equals() ? In my testing, == always works, but I'm not sure if I'm guaranteed of that. In particular, there is no .clone() method on an enum, so I don't know if it is possible to get an enum for which .equals() would return a different...
Counting the number of True Booleans in a Python List
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Yes, for the top part. As I indicated, the Python test for a "true " (as in an if statement) is more complicated than just testing for True. See docs.python.org/py3k/library/stdtypes.html#truth. The True = 2 was just to reinforce that the concept of "true" is more complex;...
Retrieve filename from file descriptor in C
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I just tested this and it remains correct if the file is moved and you call it again (meaning: you get the new path of the file). However this is not supported on linux (tested on Ubuntu 14.04 - F_GETPATH is not defined).
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Storing Objects in HTML5 localStorage
...ur object before storing it, and later parse it when you retrieve it:
var testObject = { 'one': 1, 'two': 2, 'three': 3 };
// Put the object into storage
localStorage.setItem('testObject', JSON.stringify(testObject));
// Retrieve the object from storage
var retrievedObject = localStorage.getItem(...
Sort a list by multiple attributes?
...So first I defined a helper method
def attr_sort(self, attrs=['someAttributeString']:
'''helper to sort by the attributes named by strings of attrs in order'''
return lambda k: [ getattr(k, attr) for attr in attrs ]
then to use it
# would defined elsewhere but showing here for consiseness
se...
How to convert SecureString to System.String?
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@radbyx In a quick and dirty test setup, I can call it 1000 times in 76ms. The first invocation takes 0.3 ms and subsequent invocations ~0.07ms. How large is your secure string and which version of the framework are you using?
– Ras...
Deserializing a JSON into a JavaScript object
...se ? window.JSON.parse( data ) : (new Function("return " + data))();
}
// testing
obj = parseJSON('{"name":"John"}');
alert(obj.name);
This way you don't need any external library and it still works on old browsers.
share...
Delete everything in a MongoDB database
...e, however if you're trying to use this for wiping the database in between test cases you may eventually find problems with index constraints not being honored after the database drop. As a result, you'll either need to mess about with ensureIndexes, or a simpler route would be avoiding the dropData...
What is so bad about singletons? [closed]
...erently cause code to be tightly coupled. This makes faking them out under test rather difficult in many cases.
They carry state around for the lifetime of the application. Another hit to testing since you can end up with a situation where tests need to be ordered which is a big no no for unit tests...