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What is the difference between Python's list methods append and extend?
What's the difference between the list methods append() and extend() ?
20 Answers
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Remove local git tags that are no longer on the remote repository
... This must be my favourite git answer on StackOverflow. It combines knowledge, simplicity and trickery an explains everything. Great
– tymtam
Nov 30 '11 at 8:12
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VS Debug调试模式下内存泄露检测原理 - C/C++ - 清泛网 - 专注C/C++及内核技术
...T宏定义了malloc、realloc，如下：
#define malloc(s) _malloc_dbg(s, _NORMAL_BLOCK, __FILE__, __LINE__)
#define calloc(c, s) _calloc_dbg(c, s, _NORMAL_BLOCK, __FILE__, __LINE__)
#define realloc(p, s) _realloc_dbg(p, s, _NORMAL_BLOCK, __FILE__, __LINE__)
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Hidden features of Ruby
Continuing the "Hidden features of ..." meme, let's share the lesser-known but useful features of Ruby programming language.
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The best way to remove duplicate values from NSMutableArray in Objective-C?
...ded NSOrderedSet to iOS 5 and Mac OS X 10.7. What had been an algorithm is now two lines of code:
NSOrderedSet *orderedSet = [NSOrderedSet orderedSetWithArray:yourArray];
NSArray *arrayWithoutDuplicates = [orderedSet array];
If you are worried about the order and you're running on iOS 4 or earl...
How do I check if there are duplicates in a flat list?
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Use set() to remove duplicates if all values are hashable:
>>> your_list = ['one', 'two', 'one']
>>> len(your_list) != len(set(your_list))
True
share
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How does the main() method work in C?
I know there are two different signatures to write the main method -
9 Answers
9
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Good examples of Not a Functor/Functor/Applicative/Monad?
...Wiki for an article on bottom (link) or unsafe functions (link).
I wonder if it is possible to create such a type constructor using a richer type system, such as Agda or Haskell with various extensions.
A type constructor which is an Applicative, but not a Monad:
newtype T a = T {multidimensional...
Retargeting solution from .Net 4.0 to 4.5 - how to retarget the NuGet packages?
...ed a solution that is currently targeting .NET 4.0 in VS2010 to VS2012 and now I would like to re-target it to .Net 4.5
5 A...
How can Perl's print add a newline by default?
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The real danger comes from the fact that all code will now add newlines, even code in other people's modules that weren't expecting it. Imagine networking code that would have sent the message "helo\r\n" that now sends "helo\r\n\n".
– Chas. Owens
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