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How to design a product table for many kinds of product where each product has many parameters

...tions based on which is the least bad for your app. Therefore you need to know how you're going to query the data before you choose a database design. There's no way to choose one solution that is "best" because any of the solutions might be best for a given application. ...
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How to make Twitter Bootstrap tooltips have multiple lines?

... Now how do you do that with a popover. – aaa90210 Jul 3 '15 at 0:36 1 ...
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How can I extend typed Arrays in Swift?

... to += t } } return to } } Which now works as intended without build errors: ["A","B","C"].find { $0.compare("A") > 0 } share | improve this answer ...
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Return first N key:value pairs from dict

... This answer is no longer correct. Python dicts now preserve insertion order, and this is explicitly documented. – Konrad Rudolph Sep 22 at 12:30 1 ...
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Constructor of an abstract class in C#

... possible to write constructor for an abstract class in C#? As far as I know we can't instantiate an abstract class.. so what is it for? You can't instantiate the class, right? ...
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Why does NULL = NULL evaluate to false in SQL server

... Think of the null as "unknown" in that case (or "does not exist"). In either of those cases, you can't say that they are equal, because you don't know the value of either of them. So, null=null evaluates to not true (false or null, depending on you...
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Get the current displaying UIViewController on the screen in AppDelegate.m

...oller: UIViewController *vc = self.window.rootViewController; Once you know the root view controller, then it depends on how you have built your UI, but you can possibly find out a way to navigate through the controllers hierarchy. If you give some more details about the way you defined your app...
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HttpClient not supporting PostAsJsonAsync method C#

... Now i am getting an error :" Could not load file or assembly 'Newtonsoft.Json, Version=4.5.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or one of its dependencies. The system cannot find the file specified. " ...
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Is there a command like “watch” or “inotifywait” on the Mac?

I want to watch a folder on my Mac (Snow Leopard) and then execute a script (giving it the filename of what was just moved into a folder (as a parameter... x.sh "filename")). ...
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Converting numpy dtypes to native python types

...) and also np.float(0).item(). In other words, for the cases where it is known what to do, support the .item() method even if it simply returns the same value. That way I could apply .item() on far more numpy scalars without special casing. As it is, seemingly parallel concepts differ due to unde...