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How to know if two arrays have the same values
...have these two arrays: one is filled with information from an ajax request and another stores the buttons the user clicks on. I use this code (I filled with sample numbers):
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How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
I have two Python dictionaries, and I want to write a single expression that returns these two dictionaries, merged (i.e. taking the union). The update() method would be what I need, if it returned its result instead of modifying a dictionary in-place.
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git merge: apply changes to code that moved to a different file
... git did not notice that the code in the new file was the same as the old, and so none of my changes are there.
3 Answers...
What's the difference between lapply and do.call?
I'm learning R recently and confused by two function: lapply and do.call . It seems that they're just similar to map function in Lisp. But why are there two functions with such a different name? Why doesn't R just use a function called map ?
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Cannot create or edit Android Virtual Devices (AVD) from Eclipse, ADT 22.6
...T 22.6.0 ONLY, THESE BUGS SUBSEQUENTLY FIXED IN FOLLOWING BUILDS
Download and install new ADT v22.6.1 from here (zip) or use SDK manager to update
Seems like some bug from Google side, this problem found after "ADT 22.6" update. Widely reported on "Android Open Source Project - Issue Tracker" and ...
Java rounding up to an int using Math.ceil
...still return 4? 157/32 = 4.90625 , I need to round up, I've looked around and this seems to be the right method.
15 Answer...
Regex to validate date format dd/mm/yyyy
...2-9]\d)?\d{2})$
I tested it a bit in the link Arun provided in his answer and also here and it seems to work.
Edit February 14th 2019: I've removed a comma that was in the regex which allowed dates like 29-0,-11
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How to assign from a function which returns more than one value?
...ge. It does not require a special operator but does require that the left hand side be written using list[...] like this:
library(gsubfn) # need 0.7-0 or later
list[a, b] <- functionReturningTwoValues()
If you only need the first or second component these all work too:
list[a] <- function...
Remap values in pandas column with a dict
... edited Oct 3 '18 at 8:31
Winand
1,2631717 silver badges3535 bronze badges
answered Nov 27 '13 at 19:06
DSM...
TSQL - Cast string to integer or return default value
Is there a way in T-SQL to cast an nvarchar to int and return a default value or NULL if the conversion fails?
8 Answers
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