大约有 10,175 项符合查询结果（耗时：0.0286秒） [XML]
What does “default” mean after a class' function declaration?
I've seen default used next to function declarations in a class. What does it do?
5 Answers
...
Wrap a delegate in an IEqualityComparer
Several Linq.Enumerable functions take an IEqualityComparer<T> . Is there a convenient wrapper class that adapts a delegate(T,T)=>bool to implement IEqualityComparer<T> ? It's easy enough to write one (if your ignore problems with defining a correct hashcode), but I'd like to know...
SQL Server indexes - ascending or descending, what difference does it make?
When you create an index on a column or number of columns in MS SQL Server (I'm using version 2005), you can specify that the index on each column be either ascending or descending. I'm having a hard time understanding why this choice is even here. Using binary sort techniques, wouldn't a lookup be ...
How can I display just a portion of an image in HTML/CSS?
Let's say I want a way to display just the the center 50x50px of an image that's 250x250px in HTML. How can I do that. Also, is there a way to do this for css:url() references?
...
How does `is_base_of` work?
How does the following code work?
5 Answers
5
...
What's the difference between design patterns and architectural patterns?
When we read about design patterns on the internet we note that there are 3 categories:
5 Answers
...
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...
Push git commits & tags simultaneously
I'm aware of the reason that git push --tags is a separate operation to plain old git push . Pushing tags should be a conscious choice since you don't want accidentally push one. That's fine. But is there a way to push both together? (Aside from git push && git push --tags .)
...
Is CSS Turing complete?
CSS isn't, insofar as I know, Turing complete. But my knowledge of CSS is very limited.
7 Answers
...
In Django, how does one filter a QuerySet with dynamic field lookups?
Given a class:
4 Answers
4
...