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Set type for function parameters?
...read the entire code, and the entire code of the caller and of its caller, etc. Blessing? you certainly must be jesting.
– Toskan
Mar 29 '16 at 20:21
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Guards vs. if-then-else vs. cases in Haskell
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This is just a matter of ordering but I think its very readable and has the same structure as guards.
nthElement :: [a] -> Int -> Maybe a
nthElement [] a = Nothing
nthElement (x:xs) a = if a < 1 then Nothing else
if ...
How do I copy a folder from remote to local using scp? [closed]
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use -p to preserve file modification times, permissions, etc! scp -pr user@...
– Ber
May 7 '16 at 2:06
28
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What is the difference between the Facade and Adapter Pattern?
...atible, just when you need to make it more readable, less poorly-designed, etc.
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How to convert floats to human-readable fractions?
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If the the output is to give a human reader a fast impression of the order of the result, it makes no sense return something like "113/211", so the output should limit itself to using one-digit numbers (and maybe 1/10 and 9/10). If so, you can observe that there are only 27 different fraction...
git: Switch branch and ignore any changes without committing
... working branchY) then git checkout branchX do something git add/commit -m etc. git checkout branchY and git stash pop to get back the stash
– Highmastdon
Nov 9 '12 at 9:36
2
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Locking a file in Python
.../ DOS systems.
try:
# Posix based file locking (Linux, Ubuntu, MacOS, etc.)
import fcntl, os
def lock_file(f):
fcntl.lockf(f, fcntl.LOCK_EX)
def unlock_file(f):
fcntl.lockf(f, fcntl.LOCK_UN)
except ModuleNotFoundError:
# Windows file locking
import msvcrt, os...
How to make a new List in Java
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To create a non-empty list of fixed size (operations like add, remove, etc., are not supported):
List<Integer> list = Arrays.asList(1, 2); // but, list.set(...) is supported
To create a non-empty mutable list:
List<Integer> list = new ArrayList<>(Arrays.asList(3, 4));
In ...
Differences between SP initiated SSO and IDP initiated SSO
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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PostgreSQL query to return results as a comma separated list
... If you wanted to sort the column select string_agg(id, ', ' order by id desc) from table
– M A Hossain Tonu
Aug 14 '18 at 9:31
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