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What does “S3 methods” mean in R?
Since I am fairly new to R, I do not know what the S3 methods and objects are. I found that there are S3 and S4 object systems, and some recommend to use S3 over S4 if possible (See Google's R Style Guide at http://google-styleguide.googlecode.com/svn/trunk/google-r-style.html )*. However, I do not...
Python super() raises TypeError
...od me . Triptych . I remember I was using a python version less than 3.0 , and I didn't specifically said that my class inherits from Object , and the call to super worked . Maybe it's default behaviour from 2.6 ? Just saying :)
– Geo
Jan 28 '09 at 20:55
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What is Python buffer type for?
...buffer in this case is a sub-string, starting at position 6 with length 5, and it doesn't take extra storage space - it references a slice of the string.
This isn't very useful for short strings like this, but it can be necessary when using large amounts of data. This example uses a mutable bytearr...
How do I concatenate two strings in C?
...e that the function returns a block of heap allocated memory to the caller and passes on ownership of that memory. It is the responsibility of the caller to free the memory when it is no longer needed.
Call the function like this:
char* s = concat("derp", "herp");
// do things with s
free(s); // d...
TypeError: 'str' does not support the buffer interface
... It's odd that this fixed it; the original code worked for me under 3.1, and the sample code in the docs also does not encode explicitly. If you use it on non-ASCII text, does gunzip decompress it? I got an error.
– Tom Zych
Mar 29 '11 at 10:59
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How to test Spring Data repositories?
... with the help of Spring Data. I am new to spring-data (but not to spring) and I use this tutorial . My choice of technologies for dealing with the database is JPA 2.1 and Hibernate. The problem is that I am clueless as to how to write unit tests for such a repository.
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Vim clear last search highlighting
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This is not clear from this answer and comments : note that set nohlsearch will disable the highlighting for next searches as well. The behaviour of :noh is very different : the highlighting will be automatically reenabled when you perform a new search or eve...
Will GetType() return the most derived type when called from the base class?
...nly sees the super class. Is it not that it will always return what the handle was defined as not the instance? - or am i missing something?
– user359135
Jul 20 '18 at 10:56
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What does middleware and app.use actually mean in Expressjs?
... haven't found a clear, concise explanation of what middleware actually is and what the app.use statement is doing. Even the express docs themselves are a bit vague on this. Can you explain these concepts for me please?
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Understanding the Gemfile.lock file
After running the bundle install command, 'Gemfile.lock ' is created in the working directory. What do the directives inside that file mean?
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