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Database Structure for Tree Data Structure
...o-nested-sets
There are other models as well, including materialized path and nested sets:
http://communities.bmc.com/communities/docs/DOC-9902
Joe Celko has written a book on this subject, which is a good reference from a general SQL perspective (it is mentioned in the nested set article link abo...
Usage of protocols as array types and function parameters in swift
.... Such protocols use Self or associatedtype keywords in their definitions (and Equatable is one of them).
In some cases it's possible to use a type-erased wrapper to make your collection homomorphic. Below is an example.
// This protocol doesn't provide polymorphism over the types which implement ...
Scanner is skipping nextLine() after using next() or nextFoo()?
I am using the Scanner methods nextInt() and nextLine() for reading input.
19 Answers
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Using OpenGl with C#? [closed]
Is there free OpenGL support libraries for C#? If so, which one do I use and where do I find sample projects?
9 Answers
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How to use the 'og' (Open Graph) meta tag for Facebook share
...uld provide the link to your google+ profile.
– jurihandl
Feb 6 '14 at 13:53
meta tag author means author of website o...
How to close a Java Swing application from the code
What is the proper way to terminate a Swing application from the code, and what are the pitfalls?
9 Answers
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What does “Content-type: application/json; charset=utf-8” really mean?
...om the content itself, i.e. you can't necessarily just look at the content and know what to do with it. That's what HTTP headers are for, they tell the recipient what kind of content they're (supposedly) dealing with.
Content-type: application/json; charset=utf-8 designates the content to be in JSO...
Read String line by line
...it(System.getProperty("line.separator"));
This gives you all lines in a handy array.
I don't know about the performance of split. It uses regular expressions.
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Haskell error parse error on input `='
I'm new to Haskell and after starting ghci I tried:
4 Answers
4
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I need to generate uuid for my rails application. What are the options(gems) I have? [duplicate]
I use
Rails 3.0.20 and
ruby 1.8.7 (2011-06-30 patchlevel 352)
4 Answers
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