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Should operator
...tly defining the bool relationship operators.
The operator:
Equality == and !=
Relationship < > <= >=
These operators should return a bool as they are comparing two objects of the same type. It is usually easiest to define these operators as part of the class. This is because a clas...
How can I output the value of an enum class in C++11
...e else sees this question you can just use the cast technique method above and simply call "static_cast<int>(value)" to get the integer or "static_cast<A>(intValue)" to get an enum value. Just bear in mind that going from int to enum or enum to enum can cause issues and generally is gene...
Redis cache vs using memory directly
I have not used Redis yet, but I heard about it and plan to try it as cache storing.
2 Answers
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How to properly use unit-testing's assertRaises() with NoneType objects? [duplicate]
...ove you can use the ability of assertRaises to be use as a context manager and do:
with self.assertRaises(TypeError):
self.testListNone[:1]
If you are using python2.6 another way beside the one given until now is to use unittest2 which is a back port of unittest new feature to python2.6, and ...
Is there any method to get the URL without query string?
...o within specs (both the specs for what window.location.href should return and the specs for how URL's work) so it shouldn't have any future problems. It's more easily read and understood for cleaner code. It's shorter for smaller code. And lastly it's less intense and less complicated than Felix's ...
How to initialize an array in Java?
...tic void product(int[] array){ int[] productArray = new int[array.length]; and want to set all the values of productArray zero, what should I write? (I think I should write a loop and set all values to zero, is there any better way to do this?)
– Hengameh
Aug 2...
Ruby Metaprogramming: dynamic instance variable names
...hash.each {|k,v| instance_variable_set("@#{k}",v)}
– Andrei
Jun 10 '12 at 20:32
3
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Asterisk in function call
...
* is the "splat" operator: It takes a list as input, and expands it into actual positional arguments in the function call.
So if uniqueCrossTabs was [ [ 1, 2 ], [ 3, 4 ] ], then itertools.chain(*uniqueCrossTabs) is the same as saying itertools.chain([ 1, 2 ], [ 3, 4 ])
This i...
How to copy Docker images from one host to another without using a repository
... load -i <path to image tar file>
PS: You may need to sudo all commands.
EDIT:
You should add filename (not just directory) with -o, for example:
docker save -o c:/myfile.tar centos:16
share
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Does Flask support regular expressions in its URL routing?
I understand that Flask has the int, float and path converters, but the application we're developing has more complex patterns in its URLs.
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