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How to split csv whose columns may contain ,
... literal. I imagine that Excel implements this by going one character at a time, if it encounters a "text qualifier", it keeps going to the next "qualifier". You can probably implement this yourself with a for loop and a boolean to denote if you're inside literal text.
public string[] CsvParser(str...
How do I convert a datetime to date?
How do I convert a datetime.datetime object (e.g., the return value of datetime.datetime.now()) to a datetime.date object in Python?
...
What do *args and **kwargs mean? [duplicate]
...e_wrapper(wrapper, f) # update wrapper's metadata
return wrapper
import time
@cache
def foo(n):
time.sleep(2)
return n*2
foo(10) # first call with parameter 10, sleeps
foo(10) # returns immediately
share
|
...
Haskell composition (.) vs F#'s pipe forward operator (|>)
...e sufficiently different as to affect this. For example, I know in F# sometimes writing
let f = exp
will not compile, and you need explicit eta-conversion:
let f x = (exp) x // or x |> exp
to make it compile. This also steers people away from points-free/compositional style, and toward...
Find duplicate lines in a file and count how many time each line was duplicated?
Suppose I have a file similar to the following:
7 Answers
7
...
Code Golf: Collatz Conjecture
...
}
sub Collatz_o{
...
say {$null} $n;
...
}
After having run it 10 times, here is a representative sample output:
Rate Recursive Iterative Optimized
Recursive 1715/s -- -27% -46%
Iterative 2336/s 36% -- -27%
Optimized 3187/s 86% 36...
Is git-svn dcommit after merging in git dangerous?
...for instance:
(work)$> git log --graph --oneline --decorate
Now it's time to merge all three commits from the "work" branch into "master" using this wonderful --no-ff option
(work)$> git checkout master
(master)$> git merge --no-ff work
You can notice the status of the logs:
(master)...
YYYY-MM-DD format date in shell script
... $date
# -1 -> explicit current date, bash >=4.3 defaults to current time if not provided
# -2 -> start time for shell
printf -v date '%(%Y-%m-%d)T\n' -1
# put current date as yyyy-mm-dd HH:MM:SS in $date
printf -v date '%(%Y-%m-%d %H:%M:%S)T\n' -1
# to print directly remove -v flag, as...
Number of days in particular month of particular year?
...d later
@Warren M. Nocos.
If you are trying to use Java 8's new Date and Time API, you can use java.time.YearMonth class. See Oracle Tutorial.
// Get the number of days in that month
YearMonth yearMonthObject = YearMonth.of(1999, 2);
int daysInMonth = yearMonthObject.lengthOfMonth(); //28
Tes...
How can I compare two dates in PHP?
...ay = date("Y-m-d");
$expire = $row->expireDate; //from database
$today_time = strtotime($today);
$expire_time = strtotime($expire);
if ($expire_time < $today_time) { /* do Something */ }
If you are using PHP 5 >= 5.2.0, you could use the DateTime class:
$today_dt = new DateTime($today)...