大约有 32,000 项符合查询结果（耗时：0.0501秒） [XML]
When do I need to use AtomicBoolean in Java?
...s Object level
monitors/synchronization. Since,
Java's synchronization mechanisms
makes code wait, when there are lots
of threads running through your
critical sections, a substantial
amount of CPU time is spent in
managing the synchronization
mechanism itself (waiting, notifying,
etc). Since the ne...
Understanding $.proxy() in jQuery
From docs I understand that .proxy() would change the scope of the function passed as an argument. Could someone please explain me this better? Why should we do this?
...
Using awk to remove the Byte-order mark
How would an awk script (presumably a one-liner) for removing a BOM look like?
5 Answers
...
Synchronization vs Lock
...same lexical scope in which they were acquired.
While the scoping mechanism for synchronized methods and statements makes it much easier to program with monitor locks, and helps avoid many common programming errors involving locks, there are occasions where you need to work with locks in a more...
How do I programmatically shut down an instance of ExpressJS for testing?
I'm trying to figure out how to shut down an instance of Express. Basically, I want the inverse of the .listen(port) call - how do I get an Express server to STOP listening, release the port, and shutdown cleanly?
...
Remote Connections Mysql Ubuntu
For some reason, I've been unable to connect remotely to my MySQL server. I've tried everything and I'm still getting errors.
...
Override configured user for a single git commit
I am trying to commit to a project on github.com from my work laptop, which is already configured for the company git server. Is there a way to commit specifying different author credentials, possible using a different configuration file or orther command line switches?
...
When to favor ng-if vs. ng-show/ng-hide?
...mpared to ng-show/ng-hide. In my experience, the difference is negligible. Animations are possible when using both ng-show/ng-hide and ng-if, with examples for both in the Angular documentation.
Ultimately, the question you need to answer is whether you can remove element from DOM or not?
...
When do you use map vs flatMap in RxJava?
...latMap - supplied function accepts an item then returns an "Observable", meaning each item of the new "Observable" will be emitted separately further down.
May be code will clear things up for you:
Observable.just("item1").map( str -> {
System.out.println("inside the map " + str);
retu...
How do I pull my project from github?
I have a project on github that I have been working on before. However, I wiped out my computer and I am wondering which git command should I invoke under my username to checkout my project again so that I can push my latest changes to github under my account.
...