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What are the most interesting equivalences arising from the Curry-Howard Isomorphism?
... have a few things (assisted by the Wikipedia article, which has some neat tables and such itself):
I think that sum types/union types (e.g. data Either a b = Left a | Right b) are equivalent to inclusive disjunction. And, though I'm not very well acquainted with Curry-Howard, I think this demons...
jQuery to serialize only elements within a div
...I imagine the above could get slow if the div had lots of elements, like a table with several rows/columns.
– David Murdoch
Apr 14 '11 at 19:23
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Convert data.frame columns from factors to characters
...sAsFactors:
The default setting for arguments of data.frame and read.table.
may be something you want to set to FALSE in your startup files (e.g. ~/.Rprofile). Please see help(options).
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Rails create or update magic?
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Won't assign_or_new return the first row in the table if it exists and then that row will get updated? It seems to be doing that for me.
– steve klein
Apr 27 '15 at 17:13
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How to initialize all members of an array to the same value?
... array in C (not C++ if that makes a difference). I want to initialize all members of the same value.
23 Answers
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How to get the browser viewport dimensions?
...eight on mobile devices, really tripleodeon.com/wp-content/uploads/2011/12/table.html
– Dan
Jul 31 '13 at 10:57
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Drop unused factor levels in a subsetted data frame
...things up afterwards. Try the following before loading your data with read.table or read.csv:
options(stringsAsFactors = FALSE)
The disadvantage is that you're restricted to alphabetical ordering. (reorder is your friend for plots)
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Convert date to datetime in Python
...That is because what it does is first retrieving the minimum value representable by datetime and then getting its time component. Incidentally, datetime.min = datetime(MINYEAR, 1, 1, tzinfo=None) and has a time of 00:00:00. However, I think it is cleaner to explicitly create a 00:00:00 time either t...
How to clear all the jobs from Sidekiq?
...ean" all data stored in redis, it is equivalent to a drop database or drop table in relational databases.
– jonathanccalixto
Jun 18 '17 at 18:49
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Confirm deletion in modal / dialog using Twitter Bootstrap?
I have an HTML table of rows tied to database rows. I'd like to have a "delete row" link for each row, but I would like to confirm with the user beforehand.
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