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Any reason why scala does not explicitly support dependent types?
...h dependent types and I think it is possible to express almost all the features of such languages as Epigram or Agda in Scala, but I'm wondering why Scala does not support this more explicitly like it does very nicely in other areas (say, DSLs) ?
Anything I'm missing like "it is not necessary" ?
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Is there a faster/shorter way to initialize variables in a Rust struct?
In the following example, I would much prefer to assign a value to each field in the struct in the declaration of the fields. Alternatively, it effectively takes one additional statement for each field to assign a value to the fields. All I want to be able to do is to assign default values when the ...
'str' object does not support item assignment in Python
I would like to read some characters from a string and put it into other string (Like we do in C).
7 Answers
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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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Ruby: How to iterate over a range, but in set increments?
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See http://ruby-doc.org/core/classes/Range.html#M000695 for the full API.
Basically you use the step() method. For example:
(10..100).step(10) do |n|
# n = 10
# n = 20
# n = 30
# ...
end
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Creating an empty bitmap and drawing though canvas in Android
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This is probably simpler than you're thinking:
int w = WIDTH_PX, h = HEIGHT_PX;
Bitmap.Config conf = Bitmap.Config.ARGB_8888; // see other conf types
Bitmap bmp = Bitmap.createBitmap(w, h, conf); // this creates a MUTABLE bitmap
Canvas canvas = new Canvas...
Breaking loop when “warnings()” appear in R
I am having an issue:
I am running a loop to process multiple files. My matrices are enormous and therefore I often run out of memory if I am not careful.
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How to create major and minor gridlines with different linestyles in Python
I am currently using matplotlib.pyplot to create graphs and would like to have the major gridlines solid and black and the minor ones either greyed or dashed.
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Undo a git stash
I just did a stash in a project that I haven't commit. Is there a way to go back to the state before I stashed? How could I do this? I've closed the terminal and my laptop is shut down. I've done some researched and it seems there's no way to do this.
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sqlite3.ProgrammingError: Incorrect number of bindings supplied. The current statement uses 1, and t
I cannot figure out why this is giving me the error, The actual string I am trying to insert is 74 chars long, it's: "/gifs/epic-fail-photos-there-i-fixed-it-aww-man-the-tire-pressures-low.gif"
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