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How to add a touch event to a UIView?
...ed by default:
UITapGestureRecognizer Tap (touching the screen briefly one or more times)
UILongPressGestureRecognizer Long touch (touching the screen for a long time)
UIPanGestureRecognizer Pan (moving your finger across the screen)
UISwipeGestureRecognizer Swipe (moving finger quickly...
Calling C/C++ from Python?
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Boost.Python is one of the more user-friendly libraries in Boost, for a simple function call API it is quite straightforward and provides boilerplate you'd have to write yourself. It's a bit more complicated if you want to expose an object-...
How to join (merge) data frames (inner, outer, left, right)
... addition that was helpful for me - When you want to merge using more than one column: merge(x=df1,y=df2, by.x=c("x_col1","x_col2"), by.y=c("y_col1","y_col2"))
– Dileep Kumar Patchigolla
Dec 1 '16 at 10:40
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What is the gain from declaring a method as static
... recently been looking through my warnings in Eclipse and come across this one:
9 Answers
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Any way to make a WPF textblock selectable?
...ansparent"
BorderThickness="0"
Text="{Binding Text, Mode=OneWay}"
IsReadOnly="True"
TextWrapping="Wrap" />
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Redefining NULL
...e to do now is make major changes to your compiler, and hey presto you're done :)
As a side note, it may be possible to implement these changes with a source code transformation stage before the compiler proper. That is, instead of the normal flow of preprocessor -> compiler -> assembler ->...
Send message to specific client with socket.io and node.js
...stener and remove them in the disconnect listener.
I would use the latter one, since depending on your application you might want to have more state on the clients anyway, so something like clients[id] = {conn: clientConnect, data: {...}} might do the job.
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Cross compile Go on OSX?
...d runs only that call in a custom environment and 'resets' it after it is done. For example run export GOOS=windows, then the command with or without the env and echo $GOOS afterwards. With the env the GOOS was not changed.
– leondepeon
Jun 13 '16 at 9:17
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Remap values in pandas column with a dict
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Adding to this question if you ever have more than one columns to remap in a data dataframe:
def remap(data,dict_labels):
"""
This function take in a dictionnary of labels : dict_labels
and replace the values (previously labelencode) into the string.
ex: di...
Null or default comparison of generic argument in C#
...default(T))
To do comparisons with the "==" operator you will need to use one of these methods:
If all cases of T derive from a known base class you can let the compiler know using generic type restrictions.
public void MyMethod<T>(T myArgument) where T : MyBase
The compiler then recognizes ...