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What is the fastest or most elegant way to compute a set difference using Javascript arrays?

Let A and B be two sets. I'm looking for really fast or elegant ways to compute the set difference ( A - B or A \B , depending on your preference) between them. The two sets are stored and manipulated as Javascript arrays, as the title says. ...
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What is the difference between JDK dynamic proxy and CGLib?

In case of the Proxy Design Pattern , What is the difference between JDK's Dynamic Proxy and third party dynamic code generation API s such as CGLib ? ...
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Is there any way to create a blank solution (.sln) file first and then add projects?

Visual studio has always annoyed me because (to my knowledge) you cannot create a solution first and then add new/existing projects to it. The only way I know how to create a solution is to create a project and specify the solution name for it. ...
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What is the correct way to get a subarray in Scala?

I am trying to get a subarray in scala, and I am a little confused on what the proper way of doing it is. What I would like the most would be something like how you can do it in python: ...
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UIView's frame, bounds, center, origin, when to use what?

UIView has the properties frame , bounds , center , and origin , and they all seem to be interrelated. Most of the time, I deal with frame when setting the position and size of a UIView . I understand that frame is using global coordinate system and bounds is using coordinate of the lo...
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generate days from date range

I would like to run a query like 29 Answers 29 ...
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css3 drop shadow under another div, z-index not working [duplicate]

i'm trying to use a drop shadow to make it look like one div (the header) is "above" another. my problem is that the "middle" div is covering the drop shadow. i tried using z-index to put the header div about the middle div, but it's not working (the shadow is still being covered). when i put a brea...
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Loop through Map in Groovy?

I have a very simple task I am trying to do in Groovy but cannot seem to get it to work. I am just trying to loop through a map object in groovy and print out the key and value but this code does not work. ...
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SQL function as default parameter value?

I tried changing a default parameter value with this: 6 Answers 6 ...
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How to flatten only some dimensions of a numpy array

Is there a quick way to "sub-flatten" or flatten only some of the first dimensions in a numpy array? 4 Answers ...