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How do I rename a Git repository?
...s used by git clone master child, so we can simply rename it:
Open a command prompt (or file manager window).
Change to the directory that contains the repository directory (i.e., do not go into the repository directory itself).
Rename the directory (for example, using mv from the command line or...
How do I read from parameters.yml in a controller in symfony2?
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In Symfony 2.6 and older versions, to get a parameter in a controller - you should get the container first, and then - the needed parameter.
$this->container->getParameter('api_user');
This documentation chapter explains it.
While...
Using generic std::function objects with member functions in one class
... doesn't take any arguments (<void(void)>), you must bind the first (and the only) argument.
std::function<void(void)> f = std::bind(&Foo::doSomething, this);
If you want to bind a function with parameters, you need to specify placeholders:
using namespace std::placeholders;
std:...
HashMap to return default value for non-found keys?
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[Update]
As noted by other answers and commenters, as of Java 8 you can simply call Map#getOrDefault(...).
[Original]
There's no Map implementation that does this exactly but it would be trivial to implement your own by extending HashMap:
public class Defau...
How do I trim whitespace?
Is there a Python function that will trim whitespace (spaces and tabs) from a string?
15 Answers
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how to change default python version?
... in my mac. After I run /Applications/Python 3.2/Update Shell Profile.command , it's confusing that when I type python -V in Terminal it says that Python 2.6.1 , how can I change the default python version?
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rsync exclude according to .gitignore & .hgignore & svn:ignore like --filter=:C
...itignore") which tells rsync to do a directory merge with .gitignore files and have them exclude per git's rules. You may also want to add your global ignore file, if you have one. To make it easier to use, I created an alias to rsync which included the filter.
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.NET XML serialization gotchas? [closed]
...t want the BOM. Notice the clear, obvious difference between Encoding.UTF8 and UTF8Encoding.
The three extra BOM Bytes at the beginning are (0xEFBBBF) or (239 187 191).
Reference: http://chrislaco.com/blog/troubleshooting-common-problems-with-the-xmlserializer/
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How is CountDownLatch used in Java Multithreading?
Can someone help me to understand what Java CountDownLatch is and when to use it?
12 Answers
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Why does calling a function in the Node.js REPL with )( work?
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They actually went ahead and fixed it? Awwww, pity, I'd really like to see it start a culture and become a feature in all languages. How many times have I typed )( instead of () in a hurry... :))
– geomagas
Oct ...