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How to properly document S4 class slots using Roxygen2?
For documenting classes with roxygen(2), specifying a title and description/details appears to be the same as for functions, methods, data, etc. However, slots and inheritance are their own sort of animal. What is the best practice -- current or planned -- for documenting S4 classes in roxygen2?
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I can’t find the Android keytool
I am trying to follow the Android mapping tutorial and got to this part where I had to get an API key .
10 Answers
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How should I cast in VB.NET?
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Those are all slightly different, and generally have an acceptable usage.
var.ToString() is going to give you the string representation of an object, regardless of what type it is. Use this if var is not a string already.
CStr(var) is the VB string cast op...
Check if a class has a member function of a given signature
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I'm not sure if I understand you correctly, but you may exploit SFINAE to detect function presence at compile-time. Example from my code (tests if class has member function size_t used_memory() const).
template<typename T>
struct HasUsedMemory...
Capistrano - clean up old releases
Usually when using capistrano, I will go and manually delete old releases from a deployed application. I understand that you can run cap deploy:cleanup but that still leaves 5 releases. Is this it's intended purpose? Is there another way to cleanup old releases to just 1 previous deploy?
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Replace input type=file by an image
Like a lot of people, I'd like to customize the ugly input type=file , and I know that it can't be done without some hacks and/or javascript . But, the thing is that in my case the upload file buttons are just for uploading images ( jpeg|jpg|png|gif ), so I was wondering if I could use a " clickab...
How to count items in a Go map?
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Use len(m). From http://golang.org/ref/spec#Length_and_capacity
len(s) string type string length in bytes
[n]T, *[n]T array length (== n)
[]T slice length
map[K]T map length (number of defined keys)
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Wait for all promises to resolve
...sociated with them. I want to be able to do something when all the actions and their subactions are complete. There will likely be multiple $q.alls, however once I start the resolution process, no new actions/promises will be chained.
– jensengar
Feb 13 '14 at ...
QString to char* conversion
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const char* and char* are not the same type.
– Lightness Races in Orbit
Nov 15 '12 at 22:12
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IntelliJ does not show 'Class' when we right click and select 'New'
We're creating a new project in IntelliJ and must have something wrong because when we right click on a directory, select New and then get the context menu, Java based options are not shown. Currently get things like File, some HTML options, XML options.
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