大约有 40,000 项符合查询结果（耗时：0.0579秒） [XML]
Is there a “not in” operator in JavaScript for checking object properties?
Is there any sort of "not in" operator in JavaScript to check if a property does not exist in an object? I couldn’t find anything about this around Google or Stack Overflow. Here’s a small snippet of code I’m working on where I need this kind of functionality:
...
When should I use ugettext_lazy?
...d use ugettext_lazy , while in views ugettext.
But are there any other places, where I should use ugettext_lazy too? What about form definitions?
Are there any performance diffrences between them?
...
Is Java Regex Thread Safe?
I have a function that uses Pattern#compile and a Matcher to search a list of strings for a pattern.
5 Answers
...
How do I remove a project configuration in Visual Studio 2008?
I have a Visual Studio 2008 solution into which I have imported a number of pre-existing projects. The projects are mixed-language sample code (C#, VB, C++/CLI). They currently have multiple configurations, but I want each project only to have only a single "Debug" configuration.
...
List all of the possible goals in Maven 2?
I'm new to Maven, coming from the Ant world.
5 Answers
5
...
Perl flags -pe, -pi, -p, -w, -d, -i, -t?
I have seen lots of ways of running Perl code or scripts, with different flags. However, when I try to google for what each flag means, I mainly get results to generic Perl sites and no specific information regarding the flags or their use is found there.
...
Correct use of flush() in JPA/Hibernate
I was gathering information about the flush() method, but I'm not quite clear when to use it and how to use it correctly. From what I read, my understanding is that the contents of the persistence context will be synchronized with the database, i. e. issuing outstanding statements or refreshing enti...
Can I publish a private NuGet package?
I have an assembly that I have made which is very specific to my team at my company. I want to be able to use NuGet to make this assembly avaiable to other projects that my team and similar teams at my company are working on. However, the assembly isn't really code that I want to share with the worl...
PermGen elimination in JDK 8
I have installed JDK 8 and trying to run Eclipse. I am getting following warning message:
6 Answers
...
Android Preferences: How to load the default values when the user hasn't used the preferences-screen
I am using a PreferenceActivity to let the user set some values.
I am feeding it the xml file with the defined preferences.
...