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When should you use constexpr capability in C++11?
... runtime.
Another good example would be a DegreesToRadians function. Everyone finds degrees easier to read than radians. While you may know that 180 degrees is 3.14159265 (Pi) in radians it is much clearer written as follows:
const float oneeighty = DegreesToRadians( 180.0f );
Lots of good info h...
How to set the first option on a select box using jQuery?
I have two HTML select boxes. I need to reset one select box when I make a selection in another.
17 Answers
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How to create a jQuery plugin with methods?
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@DiH, I'm with you on this one. This approach seems great, but it doesn't give you access to your global settings from anywhere other than init.
– Stephen Collins
Apr 3 '14 at 19:24
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How can I trim leading and trailing white space?
...terstrip.white=TRUE.
If you want to clean strings afterwards you could use one of these functions:
# Returns string without leading white space
trim.leading <- function (x) sub("^\\s+", "", x)
# Returns string without trailing white space
trim.trailing <- function (x) sub("\\s+$", "", x)
# ...
How to enable file sharing for my app?
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Is there any reason why it couldn't have effect in one application? I enabled it but the the App won't show up on iTunes File Sharing
– rraallvv
Feb 5 '13 at 7:40
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Static methods in Python?
...e able to call the method as ClassName.methodName(), as if it was a static one, and then no selfwill be provided to the method. As you said, it will still be possible to also call this method as ClassInstance.methodName(), and self will be provided as the first parameter, regardless of its name.
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How do I REALLY reset the Visual Studio window layout?
...are backing up your settings often doesn't work. I've never successfully done it. I believe there is a known bug if you add macros to some menus.
– dwidel
May 27 '11 at 23:19
1
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How to grep a text file which contains some binary data?
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this is the same as grep --text which paxdiablo has mentioned 2 years earlier
– user829755
Jan 16 '17 at 13:59
4
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Summarizing multiple columns with dplyr? [duplicate]
...it with the dplyr-syntax. I have a data frame with different variables and one grouping variable. Now I want to calculate the mean for each column within each group, using dplyr in R.
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Why is reading lines from stdin much slower in C++ than Python?
...io(false);
Normally, when an input stream is buffered, instead of reading one character at a time, the stream will be read in larger chunks. This reduces the number of system calls, which are typically relatively expensive. However, since the FILE* based stdio and iostreams often have separate im...