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What does it mean to “program to an interface”?
I have seen this mentioned a few times and I am not clear on what it means. When and why would you do this?
32 Answers
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Dynamic type languages versus static type languages
What are the advantages and limitations of dynamic type languages compared to static type languages?
9 Answers
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Why does one hot encoding improve machine learning performance?
...ced that when One Hot encoding is used on a particular data set (a matrix) and used as training data for learning algorithms, it gives significantly better results with respect to prediction accuracy, compared to using the original matrix itself as training data. How does this performance increase h...
How important is the order of columns in indexes?
... Also keep in mind, suppose your Index is like the picture above, and your query filters on column1 and column2, but column2 is more unique and what you really want to filter on is actually column2, then its more beneficial to just have a index where column 2 is first. This may seem counte...
Paging in a Rest Collection
... (think CouchDB or Persevere ). The problem I'm running into is how to handle the GET operation on the collection root if the collection is large.
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What is a Context Free Grammar?
...to me what a context free grammar is? After looking at the Wikipedia entry and then the Wikipedia entry on formal grammar, I am left utterly and totally befuddled. Would someone be so kind as to explain what these things are?
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difference between socket programming and Http programming
What is the difference between socket programming and Http programming? can anyone help please?
5 Answers
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Conditions for automatic generation of default/copy/move ctor and copy/move assignment operator?
... compiler typically auto generates a default constructor, copy constructor and assignment operator.
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How do I check if a string is a number (float)?
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Which, not only is ugly and slow
I'd dispute both.
A regex or other string parsing method would be uglier and slower.
I'm not sure that anything much could be faster than the above. It calls the function and returns. Try/Catch doesn't introd...
What is the minimum valid JSON?
...a JSON text as being a serialized object or array.
This means that only {} and [] are valid, complete JSON strings in parsers and stringifiers which adhere to that standard.
However, the introduction of ECMA-404 changes that, and the updated advice can be read here. I've also written a blog post on ...