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Why are data transfer objects (DTOs) an anti-pattern?
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Some projects have all data twice. Once as domain objects, and once as data transfer objects.
This duplication has a huge cost, so the architecture needs to get a huge benefit from this separation to be worth it.
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Benefits of using the conditional ?: (ternary) operator
What are the benefits and drawbacks of the ?: operator as opposed to the standard if-else statement. The obvious ones being:
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What are the differences between B trees and B+ trees?
In a b-tree you can store both keys and data in the internal and leaf nodes , but in a b+ tree you have to store the data in the leaf nodes only .
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How to explain dependency injection to a 5-year-old? [closed]
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I give you dependency injection for five-year-olds.
When you go and get things out of the refrigerator for yourself, you can cause problems. You might leave the door open, you might get something Mommy or Daddy doesn't want you to have. You might even be looking for something we don't eve...
Preferred way to create a Scala list
...example code below). You can use a mutable ListBuffer, create a var list and modify it, use a tail recursive method, and probably others that I don't know about.
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Is there any way to git checkout previous branch?
... sort of want the equivalent of cd - for git. If I am in branch master and I checkout foo , I would love to be able to type something like git checkout - to go back to master , and be able to type it again to return to foo .
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Why should I prefer to use member initialization lists?
... this case, the constructor for B will call the default constructor for A, and then initialize a.x to 3. A better way would be for B's constructor to directly call A's constructor in the initializer list:
B()
: a(3)
{
}
This would only call A's A(int) constructor and not its default constructo...
AngularJS: Service vs provider vs factory
What are the differences between a Service , Provider and Factory in AngularJS?
30 Answers
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jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
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See my edited answer. clean and build the app using Maven, and check that the servlet jar is not in the WEB-INF/lib directory in the generated webapp.
– JB Nizet
Mar 24 '13 at 17:37
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Warning: “format not a string literal and no format arguments”
Since upgrading to the latest Xcode 3.2.1 and Snow Leopard, I've been getting the warning
11 Answers
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