大约有 31,840 项符合查询结果（耗时：0.0485秒） [XML]
Using git repository as a database backend
...ve to maintain state for all of them. There are several approaches to this one, but all of them are either too hard on resources or too complex to implement (and thus kind of kill the original purpose of offloading all the hard implementation stuff to git in the first place):
"Blunt" approach: 1 u...
How to resize superview to fit all subviews with autolayout?
...ntentView and grab the height.
Further considerations exist if you have one or more UILabel's in your view that are multiline. For these it is imperitive that the preferredMaxLayoutWidth property be set correctly such that the label provides a correct intrinsicContentSize, which will be used in ...
Can you use a trailing comma in a JSON object?
...'t the first entry
s.appendF("\"%d\"", i);
}
s.append("]");
That extra one line of code in your for loop is hardly expensive...
Another alternative I've used when output a structure to JSON from a dictionary of some form is to always append a comma after each entry (as you are doing above) and ...
Describe the architecture you use for Java web applications? [closed]
...
Ok I'll do a (shorter) one:
Frontend : Tapestry (3 for older projects, 5 for newer projects)
Business layer: Spring
DAO's : Ibatis
Database : Oracle
We use Sping transaction support, and start transactions upon entering the service layer, propa...
Smallest data URI image possible for a transparent image
...H5BAEAAAAALAAAAAABAAEAAAIBRAA7
As another tip, don't omit image/gif as one comment suggests. This will break in several browsers.
share
|
improve this answer
|
follow
...
Get top 1 row of each group
... rn = 1
If you expect 2 entries per day, then this will arbitrarily pick one. To get both entries for a day, use DENSE_RANK instead
As for normalised or not, it depends if you want to:
maintain status in 2 places
preserve status history
...
As it stands, you preserve status history. If you wa...
What is the difference between mocking and spying when using Mockito?
...ss of a Type, not from an actual instance. The mock simply creates a bare-bones shell instance of the Class, entirely instrumented to track interactions with it. On the other hand, the spy will wrap an existing instance. It will still behave in the same way as the normal instance – the only differ...
How dangerous is it to access an array out of bounds?
... literal meaning of this is:
behavior, upon use of a nonportable or erroneous program construct or
of erroneous data, for which this International Standard imposes no
requirements
A non-normative note expands on this:
Possible undefined behavior ranges from ignoring the situation
co...
Python (and Python C API): __new__ versus __init__
...
There are probably other uses for __new__ but there's one really obvious one: You can't subclass an immutable type without using __new__. So for example, say you wanted to create a subclass of tuple that can contain only integral values between 0 and size.
class ModularTuple(tu...
var functionName = function() {} vs function functionName() {}
I've recently started maintaining someone else's JavaScript code. I'm fixing bugs, adding features and also trying to tidy up the code and make it more consistent.
...