大约有 40,700 项符合查询结果(耗时:0.0518秒) [XML]

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Using try vs if in python

Is there a rationale to decide which one of try or if constructs to use, when testing variable to have a value? 9 Ans...
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Why is auto_ptr being deprecated?

I heard auto_ptr is being deprecated in C++11. What is the reason for this? 5 Answers ...
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How can I check for an empty/undefined/null string in JavaScript?

I saw this question , but I didn't see a JavaScript specific example. Is there a simple string.Empty available in JavaScript, or is it just a case of checking for "" ? ...
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Any reason to write the “private” keyword in C#?

As far as I know, private is the default everywhere in C# (meaning that if I don't write public , protected , internal , etc. it will be private by default). (Please correct me if I am wrong.) ...
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In practice, what are the main uses for the new “yield from” syntax in Python 3.3?

...et's get one thing out of the way first. The explanation that yield from g is equivalent to for v in g: yield v does not even begin to do justice to what yield from is all about. Because, let's face it, if all yield from does is expand the for loop, then it does not warrant adding yield from to the ...
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How to determine when Fragment becomes visible in ViewPager

Problem: Fragment onResume() in ViewPager is fired before the fragment becomes actually visible. 26 Answers ...
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How are people unit testing with Entity Framework 6, should you bother?

... This is a topic I'm very interested in. There are many purists who say that you shouldn't test technologies such as EF and NHibernate. They are right, they're already very stringently tested and as a previous answer stated it's...
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What's the difference between @Component, @Repository & @Service annotations in Spring?

... From Spring Documentation: The @Repository annotation is a marker for any class that fulfils the role or stereotype of a repository (also known as Data Access Object or DAO). Among the uses of this marker is the automatic translation of exceptions, as described in Exceptio...
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Calling Java varargs method with single null argument?

... arg[0] and arg[1] as null s. But if I call foo(null) , arg itself is null. Why is this happening? 6 Answers ...
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How to analyze a java thread dump?

...and more about java, especially about memory management and threads. For this reason I have recently found interest in looking at thread dumps. ...