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Difference between class and type
... a variable has a type, and classes are a kind of a type.
More info here: http://docs.oracle.com/javase/specs/jls/se8/html/jls-4.html
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What is ECMAScript?
...ich differs from the JavaScript which browser-vendors implement nowadays.
http://en.wikipedia.org/wiki/ECMAScript
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How to center a label text in WPF?
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Can't install Ruby under Lion with RVM – GCC issues
...1.9.3 --enable-shared (substituting the path to your non-LLVM gcc).
Edit: https://github.com/kennethreitz/osx-gcc-installer/downloads may help for installing GCC. There is also some info available by running rvm requirements.
Edit 2: For an easier solution, you can try adding --with-gcc=clang to t...
Possible Loss of Fraction
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Knight's Shortest Path on Chessboard
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And the shortest path of two points in a graph can be found using http://en.wikipedia.org/wiki/Dijkstra's_algorithm
Pseudo-code from wikipedia-page:
function Dijkstra(Graph, source):
for each vertex v in Graph: // Initializations
dist[v] := infinity // Un...
How do I split a string into an array of characters? [duplicate]
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I didn't find “ZipFile” class in the “System.IO.Compression” namespace
...from DotNetZipLib.
using Ionic.Zip;
you can download it here, its free. http://dotnetzip.codeplex.com/
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http HEAD vs GET performance
...really is meta data about a resource that can be represented nicely in the HTTP headers, or to check if the resource exists or not, HEAD might work nicely.
For example, suppose you want to check if resource 123 exists. A 200 means "yes" and a 404 means "no":
HEAD /resources/123 HTTP/1.1
[...]
HTT...
Select by partial string from a pandas DataFrame
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