大约有 15,000 项符合查询结果（耗时：0.0278秒） [XML]
Is if(items != null) superfluous before foreach(T item in items)?
...gate versus a standard foreach. Particularly for a List which I think gets converted to a for loop.
– kjbartel
Apr 26 '19 at 3:58
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iOS Remote Debugging
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The selected answer is only for Safari. At the moment it's not possible to do real remote debugging in Chrome on iOS, but as with most mobile browsers you can use WeInRe for some simple debugging. It's a bit work to set up, but l...
How to len(generator()) [duplicate]
...too much; if we accept it, then by the same logic it's also meaningless to convert the output of a generator to a list... and yet list(generator()) works and is built into the language.
– Mark Amery
Jul 21 '15 at 10:40
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Which annotation should I use: @IdClass or @EmbeddedId
...and @EmbeddedId is when it comes to write HQL :
With @IdClass you write:
select e.name from Employee e
and with @EmbeddedId you have to write:
select e.employeeId.name from Employee e
You have to write more text for the same query. Some may argue that this differs from a more natural language l...
Are there good reasons not to use an ORM? [closed]
...honestly it isn't. Using an ORM tool means the tool/developer can insert, select, update or delete whatever he or she wants. Stored procedures provide a lot more security, especially in environments when dealing with client data. I think this is the biggest reason to consider. Security.
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How do I make Git use the editor of my choice for commits?
...e are 4 choices for the alternative editor (providing /usr/bin/editor).
Selection Path Priority Status
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0 /bin/nano 40 auto mode
1 /bin/ed -100 manual mode...
Keyboard shortcut to change font size in Eclipse?
...e the "Text Font" settings), eclipse-fonts won't work. The solution is to select "Java Editor Text Font" in "Preferences / General / Appearance / Colors and Fonts" and press Reset.
– AmigoNico
Dec 6 '12 at 18:45
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Can I invoke an instance method on a Ruby module without including it?
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module_function converts the method to a private one (well it does in my IRB anyway), which would break other callers :-(
– Orion Edwards
Nov 27 '08 at 0:19
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Detecting endianness programmatically in a C++ program
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The network conversion ops can also be used to convert everything to big endian, thus solving other problems Jay may be encountering.
– Brian
Jun 16 '09 at 13:15
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How to replace multiple white spaces with one white space
...u mean any whitespace, that's a different matter. Should all whitespace be converted to spaces? What should happen to space at the start and end?
For the benchmark below, I've assumed that you only care about spaces, and you don't want to do anything to single spaces, even at the start and end.
No...