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How can I remove the string “\n” from within a Ruby string?
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You need to use "\n" not '\n' in your gsub. The different quote marks behave differently.
Double quotes " allow character expansion and expression interpolation ie. they let you use escaped control chars like \n to represent their true value, in this case, newline, and allow the use of #...
C++ convert vector to vector
...d::vector<int> intVec to std::vector<double> doubleVec . Or, more generally, to convert two vectors of convertible types?
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Transpose a data frame
I need to transpose a large data frame and so I used:
4 Answers
4
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Keep only first n characters in a string?
Is there a way in JavaScript to remove the end of a string?
7 Answers
7
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Writing to an Excel spreadsheet
I am new to Python. I need to write some data from my program to a spreadsheet. I've searched online and there seem to be many packages available (xlwt, XlsXcessive, openpyxl). Others suggest to write to a .csv file (never used CSV and don't really understand what it is).
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How can I use Server.MapPath() from global.asax?
I need to use Server.MapPath() to combine some files path that I store in the web.config .
4 Answers
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Android Closing Activity Programmatically
What is the equivalent operation within an activity to navigating away from the screen. Like when you press the back button, the activity goes out of view. How can this be called from inside an activity so that it closes itself.
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What's invokedynamic and how do I use it?
...keep hearing about all the new cool features that are being added to the JVM and one of those cool features is invokedynamic. I would like to know what it is and how does it make reflective programming in Java easier or better?
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Best way to create an empty map in Java
I need to create an empty map.
7 Answers
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Efficient list of unique strings C#
What is the most efficient way to store a list of strings ignoring any duplicates?
I was thinking a dictionary may be best inserting strings by writing dict[str] = false; and enumerating through the keys as a list. Is that a good solution?
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