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What's the difference between design patterns and architectural patterns?
...n we read about design patterns on the internet we note that there are 3 categories:
5 Answers
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In C# what is the difference between a destructor and a Finalize method in a class?
... do so. Manually overriding Finalize will give you an error message.
Basically what you are trying to do with your Finalize method declaration is hiding the method of the base class. It will cause the compiler to issue a warning which can be silenced using the new modifier (if it was going to work...
Create a submodule repository from a folder and keep its git commit history
I have a web application that explores other web applications in a particular way. It contains some web demos in a demos folder and one of the demo should now have it's own repository. I would like to create a separate repository for this demo application and make it a subpackage submodule fro...
How to print to console in pytest?
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By default, py.test captures the result of standard out so that it can control how it prints it out. If it didn't do this, it would spew out a lot of text without the context of what test printed that text.
However, if a test fails, it will inc...
What does the star operator mean, in a function call?
...e star * unpacks the sequence/collection into positional arguments, so you can do this:
def sum(a, b):
return a + b
values = (1, 2)
s = sum(*values)
This will unpack the tuple so that it actually executes as:
s = sum(1, 2)
The double star ** does the same, only using a dictionary and thu...
const vs constexpr on variables
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I believe there is a difference. Let's rename them so that we can talk about them more easily:
const double PI1 = 3.141592653589793;
constexpr double PI2 = 3.141592653589793;
Both PI1 and PI2 are constant, meaning you can not modify them. However only PI2 is a compile-time const...
How to specify function types for void (not Void) methods in Java8?
...use the wrong interface type. The type Function is not appropriate in this case because it receives a parameter and has a return value. Instead you should use Consumer (formerly known as Block)
The Function type is declared as
interface Function<T,R> {
R apply(T t);
}
However, the Consu...
Directive isolate scope with ng-repeat scope in AngularJS
I have a directive with an isolate-scope (so that I can reuse the directive in other places), and when I use this directive with an ng-repeat , it fails to work.
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Push git commits & tags simultaneously
...y work with HTTPS only with Git 2.24)
Update May 2015
As of git 2.4.1, you can do
git config --global push.followTags true
If set to true enable --follow-tags option by default.
You may override this configuration at time of push by specifying --no-follow-tags.
As noted in this thread by Matt Rog...
Is there a way to pass optional parameters to a function?
Is there a way in Python to pass optional parameters to a function while calling it and in the function definition have some code based on "only if the optional parameter is passed"
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