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Domain Driven Design: Domain Service, Application Service
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Services come in 3 flavours: Domain Services, Application Services, and Infrastructure Services.
Domain Services : Encapsulates
business logic that doesn't naturally
fit within a domain object, and are NOT typical CRUD operations ...
移动前端开发之viewport的深入理解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...设备ideal viewport的宽度都为多少，可以到http://viewportsizes.com去查看一下，里面收集了众多设备的理想宽度。
再总结一下：ppk把移动设备上的viewport分为layout viewport 、 visual viewport 和 ideal viewport 三类，其中的ideal viewport是最...
When should I use RequestFactory vs GWT-RPC?
...orks quite well until you wind up wanting to have server-specific, non-GWT-compatible, code inside your class. Because the RPC system is based on having the same concrete type on both the client and the server, you can hit a complexity wall based on the capabilities of your GWT client.
To get arou...
What are the differences between a pointer variable and a reference variable in C++?
...s heap. This implies that there is a real address of a reference that the compiler will not tell you.
int x = 0;
int &r = x;
int *p = &x;
int *p2 = &r;
assert(p == p2);
You can have pointers to pointers to pointers offering extra levels of indirection. Whereas references only offer ...
Please explain some of Paul Graham's points on Lisp
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Matt's explanation is perfectly fine -- and he takes a shot at a comparison to C and Java, which I won't do -- but for some reason I really enjoy discussing this very topic once in a while, so -- here's my shot at an answer.
On points (3) and (4):
Points (3) and (4) on your list seem the m...
When is JavaScript synchronous?
...al that's pretty good at explaining the basics of async here: net.tutsplus.com/tutorials/javascript-ajax/…
– RobW
Apr 27 '13 at 4:30
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No ConcurrentList in .Net 4.0?
...aster. Basically, adding to a List<T> is lightning fast already; the complexity of the computational steps involved is miniscule (increment an index and assign to an element in an array; that's really it). You would need a ton of concurrent writes to see any sort of lock contention on this; an...
Explain the use of a bit vector for determining if all characters are unique
... here. @Dejel Here's the java data structure that you can use: docs.oracle.com/javase/7/docs/api/java/util/BitSet.html. Hopefully this helps someone traveling through the intertubes.
– nattyddubbs
Jan 20 '14 at 16:06
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Good examples of Not a Functor/Functor/Applicative/Monad?
... looking for a type constructor that's Applicative but not a Monad, a very common example would be ZipList.
– John L
Aug 5 '12 at 23:52
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