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Finding Number of Cores in Java
How can I find the number of cores available to my application from within Java code?
4 Answers
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What is the right way to override a setter method in Ruby on Rails?
I am using Ruby on Rails 3.2.2 and I would like to know if the following is a "proper"/"correct"/"sure" way to override a setter method for a my class attribute.
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How can I obtain the element-wise logical NOT of a pandas Series?
I have a pandas Series object containing boolean values. How can I get a series containing the logical NOT of each value?
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How to use > in an xargs command?
...ash command that will let me grep every file in a directory and write the output of that grep to a separate file. My guess would have been to do something like this
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REST response code for invalid data
What response code should be passed to client in case of following scenarios?
4 Answers
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How to select rows with one or more nulls from a pandas DataFrame without listing columns explicitly
I have a dataframe with ~300K rows and ~40 columns.
I want to find out if any rows contain null values - and put these 'null'-rows into a separate dataframe so that I could explore them easily.
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How do I add files without dots in them (all extension-less files) to the gitignore file?
Like the title says, is it possible to add "files without dots in them" to the gitignore file?
3 Answers
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How to set a Timer in Java?
How to set a Timer, say for 2 minutes, to try to connect to a Database then throw exception if there is any issue in connection?
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'typeid' versus 'typeof' in C++
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C++ language has no such thing as typeof. You must be looking at some compiler-specific extension. If you are talking about GCC's typeof, then a similar feature is present in C++11 through the keyword decltype. Again, C++ has no such...
If vs. Switch Speed
Switch statements are typically faster than equivalent if-else-if statements (as e.g. descibed in this article ) due to compiler optimizations.
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