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How does __proto__ differ from constructor.prototype?

...bject layout The most surprising thing for me was discovering that Object.__proto__ points to Function.prototype, instead of Object.prototype, but I'm sure there's a good reason for that :-) I paste the code mentioned in the image here as well for if anyone wants to test it. Note that some propert...
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计算统计特征(正态分布)函数及实例 - C/C++ - 清泛网 - 专注C/C++及内核技术

...实例main函数:#include "stdafx.h"#include "stdev.h"#include <map>int _tmain(int argc, _TCHAR* argv[]){std::map<int, int> map_...main函数: #include "stdafx.h" #include "stdev.h" #include <map> int _tmain(int argc, _TCHAR* argv[]) { std::map<int, int> map_test; map_test[0] = 100;...
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__lt__ instead of __cmp__

Python 2.x has two ways to overload comparison operators, __cmp__ or the "rich comparison operators" such as __lt__ . The rich comparison overloads are said to be preferred, but why is this so? ...
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__proto__ VS. prototype in JavaScript

What are the differences between __proto__ and prototype ? 30 Answers 30 ...
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What is __main__.py?

What is the __main__.py file for, what sort of code should I put into it, and when should I have one? 5 Answers ...
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How can I swap positions of two open files (in splits) in vim?

... Starting with this: ____________________ | one | two | | | | | |______| | | three| | | | |___________|______| Make 'three' the active window, then issue the command ctrl+w J. This moves ...
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Shards and replicas in Elasticsearch

... elasticsearch will create 5 primary shards that will contain your data: ____ ____ ____ ____ ____ | 1 | | 2 | | 3 | | 4 | | 5 | |____| |____| |____| |____| |____| Every time you index a document, elasticsearch will decide which primary shard is supposed to hold that docu...
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Iterate over object attributes in python

... object attributes are callable, such as methods. &gt;&gt;&gt; dir(obj) ['__class__', '__delattr__', '__dict__', '__doc__', '__format__', '__getattribute__', '__hash__', '__init__', '__module__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subcla...
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What are “first class” objects?

...ally has a fairly rich and sophisticated interface. &gt;&gt;&gt; dir(2) ['__abs__', '__add__', '__and__', '__class__', '__cmp__', '__coerce__', '__delattr__', '__div__', '__divmod__', '__doc__', '__float__', '__floordiv__', '__getattribute__', '__getnewargs__', '__hash__', '__hex__', '__index__', '...
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Build a Basic Python Iterator

... to the iterator protocol, which basically means they provide two methods: __iter__() and __next__(). The __iter__ returns the iterator object and is implicitly called at the start of loops. The __next__() method returns the next value and is implicitly called at each loop increment. This met...