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How to design a product table for many kinds of product where each product has many parameters
...s overkill. Class Table Inheritance would be my first choice.
Update 2019: The more I see people using JSON as a solution for the "many custom attributes" problem, the less I like that solution. It makes queries too complex, even when using special JSON functions to support them. It takes a lot ...
How to merge YAML arrays?
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answered Jul 25 '19 at 19:38
Jorge LeitaoJorge Leitao
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How to exit from Python without traceback?
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How to include a Font Awesome icon in React's render()
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TCP 的那些事儿（下） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...端发包时记下t0，然后接收端再把这个ack回来时再记一个t1，于是RTT = t1 – t0。没那么简单，这只是一个采样，不能代表普遍情况。
经典算法
RFC793 中定义的经典算法是这样的：
1）首先，先采样RTT，记下最近好几次的RTT...
How do I get an empty array of any size in python?
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If by "array" you actually mean a Python list, you can use
a = [0] * 10
or
a = [None] * 10
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Why do we have to normalize the input for an artificial neural network?
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It's explained well here.
If the input variables are combined linearly, as in an MLP [mult...
Understanding garbage collection in .NET
...ng the variable to null makes no difference at all. It will always print "1". It now works the way you hope and expected it would work.
Which does leave with the task of explaining why it works so differently when you run the Debug build. That requires explaining how the garbage collector discov...
How do you test running time of VBA code?
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Unless your functions are very slow, you're going to need a very high-resolution timer. The most...