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Xcode source automatic formatting
...y described how to auto-indent. That's not what "format" (with white space and new-line addition and removal and such things) really means.
– dergab
Apr 17 '15 at 12:40
5
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Drop all duplicate rows across multiple columns in Python Pandas
The pandas drop_duplicates function is great for "uniquifying" a dataframe. However, one of the keyword arguments to pass is take_last=True or take_last=False , while I would like to drop all rows which are duplicates across a subset of columns. Is this possible?
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What does “Content-type: application/json; charset=utf-8” really mean?
...om the content itself, i.e. you can't necessarily just look at the content and know what to do with it. That's what HTTP headers are for, they tell the recipient what kind of content they're (supposedly) dealing with.
Content-type: application/json; charset=utf-8 designates the content to be in JSO...
Difference between window.location.href, window.location.replace and window.location.assign
...rl;
They simply navigate to the new URL. The replace method on the other hand navigates to the URL without adding a new record to the history.
So, what you have read in those many forums is not correct. The assign method does add a new record to the history.
Reference: http://developer.mozilla.org/...
How can I get the intersection, union, and subset of arrays in Ruby?
...n do set operations on arrays by doing &(intersection), -(difference), and |(union).
Obviously I didn't implement the MultiSet to spec, but this should get you started:
class MultiSet
attr_accessor :set
def initialize(set)
@set = set
end
# intersection
def &(other)
@set &...
Generate array of all letters and digits
Using ruby, is it possible to make an array of each letter in the alphabet and 0-9 easily?
7 Answers
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Haskell error parse error on input `='
I'm new to Haskell and after starting ghci I tried:
4 Answers
4
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Does MySQL ignore null values on unique constraints?
...sult:
x
NULL
NULL
1
This is not true for all databases. SQL Server 2005 and older, for example, only allows a single NULL value in a column that has a unique constraint.
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How to select last two characters of a string
...pe.substr(…) is not strictly
deprecated (as in "removed from the Web standards"), it is considered
a legacy function and should be avoided when possible. It is not part
of the core JavaScript language and may be removed in the future.
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How can you undo the last git add?
...valid ref. I haven't committed anything yet (new repo) just done git add . and regretted it. I don't want to reset the entire add, just one directory. git reset -- dir/*.* generates the error above.
– Francis Davey
Jan 23 '14 at 17:51
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