大约有 44,000 项符合查询结果（耗时：0.0603秒） [XML]
Git conflict markers [duplicate]
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What does the code 77976da35a11 stands for then?
– Mellon
Oct 26 '11 at 11:21
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JS strings “+” vs concat method [duplicate]
...to use the string concatenation operators
(+, +=) instead of this method for perfomance reasons
Also see the link by @Bergi.
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Why static classes cant implement interfaces? [duplicate]
...ich takes the interface not the specific type. So you can't use the class for dependency injection the exact sort of thing you probably want to do with interfaces. Why C# doesn't treat a static class as a class that implicitly is a singleton so you could pass it around is another question which I c...
Select where count of one field is greater than one
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Use the HAVING, not WHERE clause, for aggregate result comparison.
Taking the query at face value:
SELECT *
FROM db.table
HAVING COUNT(someField) > 1
Ideally, there should be a GROUP BY defined for proper valuation in the HAVING clause, but MySQL d...
Where are my postgres *.conf files?
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Ubuntu 13.04 installed using software centre :
The location for mine is:
/etc/postgresql/9.1/main/postgresql.conf
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LINQ query to select top five
...ems
where t.DeliverySelection == true && t.Delivery.SentForDelivery == null
orderby t.Delivery.SubmissionDate
select t).Take(5);
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Are Swift variables atomic?
...trong) id driver;
@end
Uses objc_storeStrong and objc_setProperty_atomic for nonatomic and atomic respectively, where
class SwiftCar {
var engine : AnyObject?
init() {
}
}
uses swift_retain from libswift_stdlib_core and, apparently, does not have thread safety built in.
We can...
Have a fixed position div that needs to scroll if content overflows
... position:fixed;
overflow-y:scroll;
overflow-x:hidden;
}
This fork of your fiddle shows my fix:
http://jsfiddle.net/strider820/84AsW/1/
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What is a stack trace, and how can I use it to debug my application errors?
...list of "at ...", we can tell where our error happened. What we're looking for is the topmost method call that is part of our application. In this case, it's:
at com.example.myproject.Book.getTitle(Book.java:16)
To debug this, we can open up Book.java and look at line 16, which is:
15 public S...
module.exports vs exports in Node.js
...le more clearly. (Note that nano is a local variable, declared a little before the module exports are set.)
– josh3736
Jan 14 '13 at 20:19
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