大约有 45,000 项符合查询结果(耗时:0.0636秒) [XML]

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What is the difference between “instantiated” and “initialized”?

... are reference types. Parts of a Variable There is the variable name and it's value. Two parts. The variable's name is what you declare it to be. The value is what you assign to it. Variables are Initialized All variables are always given an initial value at the point the variable is declared. ...
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What Ruby IDE do you prefer? [closed]

I've been using Eclipse with RDT (not RadRails) a lot lately, and I'm quite happy with it, but I'm wondering if you guys know any decent alternatives. I know NetBeans also supports Ruby these days, but I'm not sure what it has to offer over Eclipse. ...
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What is the difference between integration and unit tests?

I know the so-called textbook definition of unit tests and integration tests. What I am curious about is when it is time to write unit tests... I will write them to cover as many sets of classes as possible. ...
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Why shouldn't I use “Hungarian Notation”?

...o - giving information about a variable, parameter, or type as a prefix to its name. Everyone seems to be rabidly against it, even though in some cases it seems to be a good idea. If I feel that useful information is being imparted, why shouldn't I put it right there where it's available? ...
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What does an exclamation mark mean in the Swift language?

... What does it mean to "unwrap the instance"? Why is it necessary? As far as I can work out (this is very new to me, too)... The term "wrapped" implies we should think of an Optional variable as a present, wrapped in shiny paper, whic...
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What is best tool to compare two SQL Server databases (schema and data)? [duplicate]

...ely essential to our business - good stuff. – Mark Brittingham Mar 26 '09 at 12:23 12 Expensive? ...
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Does JavaScript have the interface type (such as Java's 'interface')?

I'm learning how to make OOP with JavaScript . Does it have the interface concept (such as Java's interface )? 13 Answer...
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Call a Server-side Method on a Resource in a RESTful Way

... RESTful design? The RESTful principles bring the features that make web sites easy (for a random human user to "surf" them) to the web services API design, so they are easy for a programmer to use. REST isn't good because it's REST, it's good because it's good. And it is good mostly because it is ...
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What is std::move(), and when should it be used?

...a Page on C++11 R-value references and move constructors In C++11, in addition to copy constructors, objects can have move constructors. (And in addition to copy assignment operators, they have move assignment operators.) The move constructor is used instead of the copy constructor, if the object ...
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strdup() - what does it do in C?

... Exactly what it sounds like, assuming you're used to the abbreviated way in which C and UNIX assigns words, it duplicates strings :-) Keeping in mind it's actually not part of the ISO C standard itself(a) (it's a POSIX thing), it's effec...