大约有 44,561 项符合查询结果（耗时：0.0474秒） [XML]
What is the difference between a mutable and immutable string in C#?
..."cannot change" respectively. The meaning of the words is the same in the IT context; i.e.
a mutable string can be changed, and
an immutable string cannot be changed.
The meanings of these words are the same in C# / .NET as in other programming languages / environments, though (obviously) the n...
Git “error: The branch 'x' is not fully merged”
...changed in response to the commments. Thanks @slekse
That is not an error, it is a warning. It means the branch you are about to delete contains commits that are not reachable from any of: its upstream branch, or HEAD (currently checked out revision). In other words, when you might lose commits¹.
I...
What is the purpose of a stack? Why do we need it?
...
UPDATE: I liked this question so much I made it the subject of my blog on November 18th 2011. Thanks for the great question!
I've always wondered: what is the purpose of the stack?
I assume you mean the evaluation stack of the MSIL language, and not the actual pe...
Static class initializer in PHP
I have an helper class with some static functions. All the functions in the class require a ‘heavy’ initialization function to run once (as if it were a constructor).
...
How to prevent ajax requests to follow redirects using jQuery
... to access a web service, but the server, instead of returning a response with a status code describing a problem, the request is redirected to a page with a 200 header, describing the problem. I can't make any changes to this, so I need to solve it on the client somehow.
...
delete a.x vs a.x = undefined
Is there any substantial difference in doing either of these?
9 Answers
9
...
Is it possible for a computer to “learn” a regular expression by user-provided examples?
Is it possible for a computer to "learn" a regular expression by user-provided examples?
10 Answers
...
Why avoid increment (“++”) and decrement (“--”) operators in JavaScript?
...ing beyond that can be confusing to some programmers and is just not worth it in my view. For loops are an exception, as the use of the increment operator is idiomatic and thus always clear.
share
|
...
Why is extending native objects a bad practice?
...ing the native objects is a bad practice. But why? Do we get a perfomance hit? Do they fear that somebody does it "the wrong way", and adds enumerable types to Object , practically destroying all loops on any object?
...
Is it possible to force ignore the :hover pseudoclass for iPhone/iPad users?
I have some css menus on my site that expand with :hover (without js)
15 Answers
15
...