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How can I force division to be floating point? Division keeps rounding down to 0?
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In Python 2, division of two ints produces an int. In Python 3, it produces a float. We can get the new behaviour by importing from __future__.
>>> from __future__ import division
>>> a = 4
>>> b = 6
>>> c = a / b
>>> c
0.66666666666666663
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Python Linked List
...inked list in python? In scheme, a linked list is defined simply by '(1 2 3 4 5) . Python's lists, [1, 2, 3, 4, 5] , and tuples, (1, 2, 3, 4, 5) , are not, in fact, linked lists, and linked lists have some nice properties such as constant-time concatenation, and being able to reference separate p...
Interface vs Abstract Class (general OO)
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STL：accumulate与自定义数据类型 - C/C++ - 清泛网 - 专注C/C++及内核技术
...C++内置数据类型，例如：
#include <numeric>
int arr[]={10,20,30,40,50};
vector<int> va(&arr[0],&arr[5]);
int sum=accumulate(va.begin(),va.end(),0); //sum = 150
但是对于自定义数据类型，我们就需要自己动手写一个类来实现自定义数据的处理，然后让它...
Why can't I overload constructors in PHP?
...meterA("foo");
$anotherObject = MyClass::makeNewWithParametersBandC("bar", 3);
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What's the difference between process.cwd() vs __dirname?
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edited May 22 '15 at 12:23
Mark Amery
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Sorting an ArrayList of objects using a custom sorting order
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edited Apr 7 '13 at 16:58
answered Nov 28 '09 at 23:25
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In Python, how do I indicate I'm overriding a method?
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edited Dec 28 '19 at 13:25
Neuron
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how to get the current working directory's absolute path from irb
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edited May 18 '13 at 6:34
answered Dec 21 '09 at 1:31
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PHP array_filter with arguments
...s->num;
}
}
Usage (demo):
$arr = array(7, 8, 9, 10, 11, 12, 13);
$matches = array_filter($arr, array(new LowerThanFilter(12), 'isLower'));
print_r($matches);
As a sidenote, you can now replace LowerThanFilter with a more generic NumericComparisonFilter with methods like isLower, is...