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MAC addresses in JavaScript

... I concur with all the previous answers that it would be a privacy/security vulnerability if you would be able to do this directly from Javascript. There are two things I can think of: Using Java (with a signed applet) Using signed Javascript, wh...
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How to get the changes on a branch in Git

... In the context of a revision list, A...B is how git-rev-parse defines it. git-log takes a revision list. git-diff does not take a list of revisions - it takes one or two revisions, and has defined the A...B syntax to mean how it's defined in the git-diff manpage. If git-diff did n...
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Improving bulk insert performance in Entity framework [duplicate]

...ity framework and it takes about 2 min. Is there any way other than using SP to improve its performance. This is my code: ...
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TSQL Pivot without aggregate function

...se, you could also self join 5 times on customerid, filter by dbColumnName per table reference. It may work out better. share | improve this answer | follow | ...
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boost Composite keys - C/C++ - 清泛网 - 专注C/C++及内核技术

boost Composite keysComposite keysIn relational databases, composite keys depend on two or more fields of a given table The analogous concept in Boost MultiIndex is Composite keys In relational databases, composite keys depend on two or more fields of a given table. The analogous concept in Boos...
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Cleaner way to update nested structures

... Zippers Huet's Zipper provides convenient traversal and 'mutation' of an immutable data structure. Scalaz provides Zippers for Stream (scalaz.Zipper), and Tree (scalaz.TreeLoc). It turns out that the structure of the zipper is...
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How do I generate a constructor from class fields using Visual Studio (and/or ReSharper)?

I've gotten accustomed to many of the Java IDEs ( Eclipse , NetBeans , and IntelliJ IDEA ) providing you with a command to generate a default constructor for a class based on the fields in the class. ...
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Can You Get A Users Local LAN IP Address Via JavaScript?

...ou are doing something wrong". What I'm trying to do is get the users LAN IP address, and display it on the web page. Why? Because that's what the page I'm working on is all about, showing as much information as possible about you, the visitor: http://www.whatsmyip.org/more-info-about-you/ ...
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How do I dump an object's fields to the console?

When I'm running a simple Ruby script, what's the easiest way to dump an object's fields to the console? 9 Answers ...
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Similar to jQuery .closest() but traversing descendants?

... According to your definition of closest, I've written the following plugin: (function($) { $.fn.closest_descendent = function(filter) { var $found = $(), $currentSet = this; // Current place while ($currentSet.length) { $found = $currentSet.filter(...