大约有 43,000 项符合查询结果(耗时:0.0716秒) [XML]

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How to check if DST (Daylight Saving Time) is in effect, and if so, the offset?

...code uses the fact that getTimezoneOffset returns a greater value during Standard Time versus Daylight Saving Time (DST). Thus it determines the expected output during Standard Time, and it compares whether the output of the given date the same (Standard) or less (DST). Note that getTimezoneOffset...
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Visually managing MongoDB documents and collections [closed]

I'm using MongoDB in a reporting system and have to delete a whole bunch of test documents. While I don't have too much trouble using the JSON-based command-line tools, it gets extremely tedious to have to keep searching for documents, copy-and-pasting OIDs, etc., especially from a command prompt...
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SQL left join vs multiple tables on FROM line?

... The old syntax, with just listing the tables, and using the WHERE clause to specify the join criteria, is being deprecated in most modern databases. It's not just for show, the old syntax has the possibility of being ambiguous when you use both INNER and OUTER joins in ...
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Should I mix AngularJS with a PHP framework? [closed]

AngularJS is very powerful when it comes to interactive HTML5 and model binding. On the other hand, PHP frameworks like Yii enable quick, well-structured, safe and powerful web application development. Both technologies provide sophisticated means for data access, iteration and page layouting. ...
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Vim and Ctags tips and tricks [closed]

...alled Ctags (to help with C++ development) with my Vim (or rather gVim), and would like to find out your favorite commands, macros, shortcuts, tips that go along with it... ...
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Stop Excel from automatically converting certain text values to dates

...Excel 2007 bug noted by Jeffiekins one should use the solution proposed by Andrew: "=""2008-10-03""" share | improve this answer | follow | ...
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Why is String immutable in Java?

...it were mutable, these parameters could be easily changed. Synchronization and concurrency: making String immutable automatically makes them thread safe thereby solving the synchronization issues. Caching: when compiler optimizes your String objects, it sees that if two objects have same value (a="...
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Difference between app.all('*') and app.use('/')

Is there a useful difference between app.all('*', ... ) and app.use('/', ...) in Node.JS Express? 7 Answers ...
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When to use Spring Integration vs. Camel?

...cause the fluent API is really nice. We actually use it in Spring projects and use Spring to configure part of it. The programming API's are clear and there is a large set of sensible components. We did a small scale shootout and basically at that time for our requirement Camel won. We use it main...
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What REALLY happens when you don't free after malloc?

...hink of might be something like Palm OS where the program's static storage and runtime memory are pretty much the same thing, so not freeing might cause the program to take up more storage. (I'm only speculating here.) So generally, there's no harm in it, except the runtime cost of having more sto...