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Why are Standard iterator ranges [begin, end) instead of [begin, end]?
...native (excluding the lower bound) would require the existence of a "one-before-the-beginning" sentinel value.
You still need to justify why you start counting at zero rather than one, but that wasn't part of your question.
The wisdom behind the [begin, end) convention pays off time and again whe...
Why must a nonlinear activation function be used in a backpropagation neural network? [closed]
... general principle of a single layer neural network. I understand the need for aditional layers, but why are nonlinear activation functions used?
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Choosing between MEF and MAF (System.AddIn)
...ar tasks. According to this Stack Overflow question, Is MEF a replacement for System.Addin? , you can even use both at the same time.
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Adding two Java 8 streams, or an extra element to a stream
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If you add static imports for Stream.concat and Stream.of, the first example could be written as follows:
Stream<Foo> stream = concat(stream1, concat(stream2, of(element)));
Importing static methods with generic names can result in code that ...
Best way to replace multiple characters in a string?
...ts like this: text.replace('&', '\&').replace('#', '\#').
Timings for each function:
a) 1000000 loops, best of 3: 1.47 μs per loop
b) 1000000 loops, best of 3: 1.51 μs per loop
c) 100000 loops, best of 3: 12.3 μs per loop
d) 100000 loops, best of 3: 12 μs per loop
e) 100000 loops, bes...
二维码的生成细节及原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...记二维码的矩形大小。这三个定位图案有白边叫Separators for Postion Detection Patterns。之所以三个而不是四个意思就是三个就可以标识一个矩形了。
Timing Patterns也是用于定位的。原因是二维码有40种尺寸，尺寸过大了后需要有根...
Is there a simple way to remove multiple spaces in a string?
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Yes right. But before that strip() should be done. It will remove spaces from both end.
– Hardik Patel
Dec 29 '16 at 12:46
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Summarizing multiple columns with dplyr? [duplicate]
...rent variables and one grouping variable. Now I want to calculate the mean for each column within each group, using dplyr in R.
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Returning 'IList' vs 'ICollection' vs 'Collection'
...tual type of the collection, so it will use the Length or Count properties for some known types like arrays and ICollection even when you supply it as an IEnumerable.
– Guffa
Feb 6 '13 at 16:39
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CSS customized scroll bar in div
How can I customize a scroll bar via CSS (Cascading Style Sheets) for one div and not the whole page?
18 Answers
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