大约有 20,000 项符合查询结果（耗时：0.0509秒） [XML]
How do I find out which DOM element has the focus?
... body is focused. How do you find out which scrolldiv is focused? jsfiddle.net/rudiedirkx/bC5ke/show (check console)
– Rudie
Oct 22 '12 at 22:40
...
Serializing object that contains cyclic object value
... }
seen.push(val);
}
return val;
});
http://jsfiddle.net/mH6cJ/38/
As correctly pointed out in other comments, this code removes every "seen" object, not only "recursive" ones.
For example, for:
a = {x:1};
obj = [a, a];
the result will be incorrect. If your structure is l...
How to delete duplicate lines in a file without sorting it in Unix?
...
From http://sed.sourceforge.net/sed1line.txt:
(Please don't ask me how this works ;-) )
# delete duplicate, consecutive lines from a file (emulates "uniq").
# First line in a set of duplicate lines is kept, rest are deleted.
sed '$!N; /^\(.*\)\n\1$/...
Change values while iterating
...vious but I don't want to change the structures I get (they're from the go.net/html package)
– Denys Séguret
Apr 11 '13 at 9:53
1
...
Border around specific rows in a table?
...l of the solutions presented here and I've done more searching on the internet for other possible solutions, and I think I've found one that's promising:
tr.top td {
border-top: thin solid black;
}
tr.bottom td {
border-bottom: thin solid black;
}
tr.row td:first-child {
border...
How to load JAR files dynamically at Runtime?
...ct.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;
/**
* Useful class for dynamically changing the classpath, adding classes during runtime.
*/
public class ClasspathHacker {
/**
* Parameters of the method to add an URL to...
What does appending “?v=1” to CSS and Javascript URLs in link and script tags do?
...t the time of this answer) for example:
<link ... href="http://sstatic.net/stackoverflow/all.css?v=c298c7f8233d">
I think instead of a revision number the SO team went with a file hash, which is an even better approach, even with a new release, the browsers only forced to grab a new version...
Does Python support multithreading? Can it speed up execution time?
..., such as select() calls for socket reads and writes, making Python handle network events reasonably efficiently in a multi-threaded multi-core setup.
What many server deployments then do, is run more than one Python process, to let the OS handle the scheduling between processes to utilize your CPU...
Split a collection into `n` parts with LINQ?
...nd indeed the List<> is much faster. I suspect this is some sort of .NET implementation detail, perhaps deserving of a separate StackOverflow question. I have modified my answer to use List<> as per your suggestion. Preallocating the list capacity guarantees that end-insertion is still O...
Detect whether there is an Internet connection available on Android [duplicate]
I need to detect whether the Android device is connected to the Internet.
6 Answers
6
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