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In what cases could `git pull` be harmful?
...ehavior as the previous git up alias, except:
the error message is a bit more cryptic if your local branch isn't configured with an upstream branch
it relies on an undocumented feature (the -p argument, which is passed to fetch) that may change in future versions of Git
If you are running Git 2....
When to use nested classes and classes nested in modules?
I'm pretty familiar with when to use subclasses and modules, but more recently I've been seeing nested classes like this:
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linux: kill background task
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Assuming the ???? stands for one or more commands to be executed after the kill, if any of those commands relies on work done by the background process, be mindful of any cleanup or finishing-up tasks which the background process might perform in a signal handl...
How to add a touch event to a UIView?
...o move the tapped view (or a sibling view) to the tapped location. This is more useful in the handler for a UIPanGestureRecognizer for dragging the view around the screen.
– Nathan Eror
May 15 '12 at 17:10
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Circular list iterator in Python
...that should be used). See Is generator.next() visible in python 3.0? for a more in-depth explanation. Updated my answer accordingly.
– Lukas Graf
Aug 21 '15 at 18:54
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.gitignore exclude folder but include specific subfolder
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Sleep until a specific time/date
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sleep $sleep_seconds
To add precision down to nanoseconds (effectively more around milliseconds) use e.g. this syntax:
current_epoch=$(date +%s.%N)
target_epoch=$(date -d "20:25:00.12345" +%s.%N)
sleep_seconds=$(echo "$target_epoch - $current_epoch"|bc)
sleep $sleep_seconds
Note that macOS ...
How to cancel a local git commit
...se ^ signals a line continuation. So your command prompt will just ask you More?.
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UICollectionView's cellForItemAtIndexPath is not being called
Only my second time using UICollectionView's and perhaps I have bitten off more than I can chew but nevertheless:
31 Answer...
How to create a numpy array of all True or all False?
...y version 1.8, we can use full to achieve the same result with syntax that more clearly shows our intent (as fmonegaglia points out):
numpy.full((2, 2), True, dtype=bool)
UPDATE: 16 January 2017
Since at least numpy version 1.12, full automatically casts results to the dtype of the second paramet...