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The best way to remove duplicate values from NSMutableArray in Objective-C?
..., but there is a more elegant way to remove duplicates in a NSArray if you don't care about the order.
If we use Object Operators from Key Value Coding we can do this:
uniquearray = [yourarray valueForKeyPath:@"@distinctUnionOfObjects.self"];
As AnthoPak also noted it is possible to remove dupli...
Understanding the basics of Git and GitHub [closed]
I don't fully understand the purpose of using Git or Github; I know it helps to keep track of your changes and it's helpful for people collaborating with other people, but I don't collaborate with anybody so I don't know if this would be helpful for me.
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Create a tag in a GitHub repository
... remote repo:
git push origin --tags
From the official Linux Kernel Git documentation for git push:
--tags
All refs under refs/tags are pushed, in addition to refspecs explicitly listed on the command line.
Or if you just want to push a single tag:
git push origin <tag>
See als...
What is scope/named_scope in rails?
...Users who are subscribed to your newsletter.
You could, of course, always do this:
User.where(subscribed_to_newsletter: true).each do #something
Instead of always writing this you could, however, do something like this.
#File: users.rb
class User < ActiveRecord::Base
scope :newsletter, whe...
Is std::vector copying the objects with a push_back?
...are now responsible for cleaning up after them. There's no good reason to do this (not one I can think of anyway), you should always use a smart pointer.
– Ed S.
Nov 2 '12 at 0:03
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The specified named connection is either not found in the configuration, not intended to be used wit
...are having the correct one in your config.
EDIT:
As you can see here on
Documenation on ObjectContext Constructor, the first parameter is the connectionstring name which is code generated at the time you create your EDM. If, somehow, the name of your connectionstring name happens to be changed, ...
SVN: Folder already under version control but not comitting?
...er version control, so I try to add it, and then it tells me it is. When I do an svn ci , it doesn't get comitted, and doesn't show up when I try to browse to repository online.
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What is the difference between re.search and re.match?
...
re.match is anchored at the beginning of the string. That has nothing to do with newlines, so it is not the same as using ^ in the pattern.
As the re.match documentation says:
If zero or more characters at the
beginning of string match the regular expression pattern, return a
correspondin...
SQL Server SELECT LAST N Rows
...
You can do it by using the ROW NUMBER BY PARTITION Feature also. A great example can be found here:
I am using the Orders table of the Northwind database... Now let us retrieve the Last 5 orders placed by Employee 5:
SELECT ORDE...
Algorithm to compare two images
...hance if one being the illegal copy of another. The author of the copy may do stuff like rotating, making negative, or adding trivial details (as well as changing the dimension of the image).
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