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Replace multiple characters in a C# string
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Regex pattern = new Regex("[;,\t\r ]|[\n]{2}");
pattern.Replace(myString, "\n");
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Pandas DataFrame column to list [duplicate]
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There is problem here. My data in pandas dataframe has both int64 and float64. When I do df.values, it converts the int64 to float64 and the whole array has dtype of float64. Any clues how to deal with this ?
– ShikharDua
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Why doesn't 'ref' and 'out' support polymorphism?
...fety.
If these issues in basic type theory interest you, consider reading my series on how covariance and contravariance work in C# 4.0.
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Why do Lua arrays(tables) start at 1 instead of 0?
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My understanding is that it's that way just because the authors thought it would be a good way to do it, and after they rolled the language out to the public that decision calcified considerably. (I suspect there would be he...
Java default constructor
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Hi. As per my knowledge let me clear the concept of default constructor:
The compiler automatically provides a no-argument, default constructor
for any class without constructors. This default constructor will call
the no-argume...
C++: const reference, before vs after type-specifier
...r machinery, with no conclusions, no direct answer — nothing. You'll get my upvote when you add a simple clear summary stating "No, there is no semantic difference between both syntaxes, but there are some stylistical considerations as follows...". And only then all those bullets.
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Why does PHP consider 0 to be equal to a string?
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Was scratching my head on this one too when I was looping on string keys, but the array had an initial 'zero' index item which kept resulting in true on the first string key compare. I was like what? How in the... so, sure enough, this answ...
How does push notification technology work on Android?
... But I think it works on emulator as well. The thing that come into my mind is that the device keep server updated with its current path (IP). When google server needs to send notification, it takes its current path and forward message to that path. Am I right to some extent?
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Only parameterless constructors and initializers are supported in LINQ to Entities
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Having just encountered this error myself, I thought I would add that if the Payment type is a struct, you would also encounter the same error because struct types do not support parameterless constructors.
In that event, converting Payment to a class and usi...
Difference between maven scope compile and provided for JAR packaging
...t mention about it. I use Maven for a while, but I've just already asked myself about it :) So it seems that in JAR packaging context, there isn't any difference between compile and provided (except dependency transition). Am I right?
– emstol
Jul 11 '11 at ...