大约有 44,863 项符合查询结果（耗时：0.0412秒） [XML]
What's the best way to convert a number to a string in JavaScript? [closed]
...est" way to convert a number to a string (in terms of speed advantage, clarity advantage, memory advantage, etc) ?
23 Answe...
Deep null checking, is there a better way?
...a new operation "?." to the language that has the semantics you want. (And it has been added now; see below.) That is, you'd say
cake?.frosting?.berries?.loader
and the compiler would generate all the short-circuiting checks for you.
It didn't make the bar for C# 4. Perhaps for a hypothetical f...
How can I know which parts in the code are never used?
...me paths or variables are unused (or used but in no meaningful way, like written but never read)
the global one: functions that are never called, global objects that are never accessed
For the first kind, a good compiler can help:
-Wunused (GCC, Clang) should warn about unused variables, Clang u...
Run cron job only if it isn't already running
...e daemon errors out and fails, I want the cron job to periodically restart it... I'm not sure how possible this is, but I read through a couple of cron tutorials and couldn't find anything that would do what I'm looking for...
...
WAMP/XAMPP is responding very slow over localhost
...stalled WAMP. Still, accessing localhost is very, very slow, and sometimes it doesn't even load at all. I even removed it and replaced it with XAMPP, but I still got the same result. What might possibly be the problem? Here's my current hosts file:
...
RegEx match open tags except XHTML self-contained tags
...re are disputes about this answer’s content being resolved at this time. It is not currently accepting new interactions.
You can't parse [X]HTML with regex. Because HTML can't be parsed by regex....
How to properly stop the Thread in Java?
...essor class you need a way of setting a flag which informs the thread that it will need to terminate, similar to the variable run that you have used just in the class scope.
When you wish to stop the thread, you set this flag and call join() on the thread and wait for it to finish.
Make sure that ...
return statement vs exit() in main()
Should I use exit() or just return statements in main() ? Personally I favor the return statements because I feel it's like reading any other function and the flow control when I'm reading the code is smooth (in my opinion). And even if I want to refactor the main() function, having return...
Iterating through a list in reverse order in java
... for loop is much cleaner than keeping track of indexes, or using an explicit iterator.
15 Answers
...
How do I find the location of the executable in C? [duplicate]
...
To summarize:
On Unixes with /proc really straight and realiable way is to:
readlink("/proc/self/exe", buf, bufsize) (Linux)
readlink("/proc/curproc/file", buf, bufsize) (FreeBSD)
readlink("/proc/self/path/a.out", buf, bufsize) (Solaris)
On Unixes...