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Accessing class variables from a list comprehension in the class definition
How do you access other class variables from a list comprehension within the class definition? The following works in Python 2 but fails in Python 3:
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Algorithm to detect intersection of two rectangles?
... for an algorithm to detect if two rectangles intersect (one at an arbitrary angle, the other with only vertical/horizontal lines).
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UIRefreshControl - beginRefreshing not working when UITableViewController is inside UINavigationCont
I've setup a UIRefreshControl in my UITableViewController (which is inside a UINavigationController) and it works as expected (i.e. pull down fires the correct event). However, if I programmatically invoke the beginRefreshing instance method on the refresh control like:
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How to prevent ifelse() from turning Date objects into numeric objects
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You may use data.table::fifelse (data.table >= 1.12.3) or dplyr::if_else.
data.table::fifelse
Unlike ifelse, fifelse preserves the type and class of the inputs.
library(data.table)
dates <- fifelse(dates == '2011-01-...
How to create UILabel programmatically using Swift?
How do I create a UILabel programmatically using Swift in Xcode 6?
12 Answers
12
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Set Additional Data to highcharts series
is there any way to pass some additional data to the series object that will use to show in the chart 'tooltip'?
5 Answers
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How do I turn a python datetime into a string, with readable format date?
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The datetime class has a method strftime. The Python docs documents the different formats it accepts:
Python 2: strftime() Behavior
Python 3: strftime() Behavior
For this specific example, it would look something like:
my_datetime.strftime("%B %d, %Y")
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Designing function f(f(n)) == -n
A question I got on my last interview:
118 Answers
118
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targetContentOffsetForProposedContentOffset:withScrollingVelocity without subclassing UICollectionVi
I've got a very simple collectionView in my app (just a single row of square thumbnail images).
18 Answers
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How to Apply Gradient to background view of iOS Swift App
I'm trying to apply a gradient as the background color of a View (main view of a storyboard). The code runs, but nothing changes. I'm using xCode Beta 2 and Swift.
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