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windows service vs scheduled task
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Fastest way to replace NAs in a large data.table
...set.seed(1)
dt1 = create_dt(2e5, 200, 0.1)
dim(dt1)
[1] 200000 200 # more columns than Ramnath's answer which had 5 not 200
f_andrie = function(dt) remove_na(dt)
f_gdata = function(dt, un = 0) gdata::NAToUnknown(dt, un)
f_dowle = function(dt) { # see EDIT later for more elegant solution...
Creating a comma separated list from IList or IEnumerable
... like, including (but not limited to) this one.
As of .NET 4.0, there are more overloads available in string.Join, so you can actually just write:
string joined = string.Join(",", strings);
Much simpler :)
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YouTube API to fetch all videos on a channel
...ts=20 (up to 50) videos, but not the entire channel catalogue. If you want more results, use the pageToken as described here.
– Fábio Perez
Aug 14 '14 at 15:12
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Matching a space in regex
... for a space, that would be " " (one space).
If you're looking for one or more, it's " *" (that's two spaces and an asterisk) or " +" (one space and a plus).
If you're looking for common spacing, use "[ X]" or "[ X][ X]*" or "[ X]+" where X is the physical tab character (and each is preceded by a...
What is the difference between a function expression vs declaration in JavaScript? [duplicate]
...idered a best practice to use function expressions as then the behavior is more intuitive than with declarations. It reads better as it follows a logical flow, You define it and then call it, if you don't you get an error, which is the expected behavior. Actually I think function declarations are no...
Center content of UIScrollView when smaller
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For me this solution is more jerky than using Liam's NYOBetterZoom. Maybe it depend on image size etc. The moral; use the solution that best suits your needs
– wuf810
Apr 15 '11 at 10:36
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Difference between malloc and calloc?
... doesn't need to write them in user-space. This is how normal malloc gets more pages from the OS as well; calloc just takes advantage of the OS's guarantee.
This means calloc memory can still be "clean" and lazily-allocated, and copy-on-write mapped to a system-wide shared physical page of zeros. ...
Git workflow and rebase vs merge questions
...in Avoiding Git Disasters: A Gory Story. It only makes conflict resolution more tedious for them and makes it harder to recover from bad conflict resolution. Instead, use diff3 so that it's not so difficult in the first place.
Rebase workflow is not better for conflict resolution!
I am very pro-...