大约有 24,990 项符合查询结果（耗时：0.0246秒） [XML]
Best practice for creating millions of small temporary objects
What are the "best practices" for creating (and releasing) millions of small objects?
13 Answers
...
Detect when browser receives file download
I have a page that allows the user to download a dynamically-generated file. It takes a long time to generate, so I'd like to show a "waiting" indicator. The problem is, I can't figure out how to detect when the browser has received the file, so I can hide the indicator.
...
Why are Oracle table/column/index names limited to 30 characters?
I can understand that many years ago there would be this kind of limitation, but nowadays surely this limit could easily be increased. We have naming conventions for objects, but there is always a case that turns up where we hit this limit - especially in naming foreign keys.
...
Can Python test the membership of multiple values in a list?
... if two or more values have membership on a list, but I'm getting an unexpected result:
10 Answers
...
Are the PUT, DELETE, HEAD, etc methods available in most web browsers?
I've seen a couple questions around here like How to debug RESTful services , which mentions:
7 Answers
...
Explain the encapsulated anonymous function syntax
Can you explain the reasoning behind the syntax for encapsulated anonymous functions in JavaScript? Why does this work: (function(){})(); but this doesn't: function(){}(); ?
...
git push says “everything up-to-date” even though I have local changes
I have a remote gitosis server and a local git repository, and each time I make a big change in my code, I'll push the changes to that server too.
...
Copy array by value
When copying an array in JavaScript to another array:
34 Answers
34
...
What is Haskell used for in the real world? [closed]
...er, it is hard to get information on how it is used in the real world applications. What are the most popular projects / usages of Haskell and why it excels at solving these problems?
...
When is the finalize() method called in Java?
I need to know when the finalize() method is called in the JVM . I created a test class which writes into a file when the finalize() method is called by overriding it. It is not executed. Can anybody tell me the reason why it is not executing?
...