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Search and Replace with RegEx components in Atom editor
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If you Cmd-F and open the search pane, there is a ".*" button at the right side. Click it and n...
How to catch integer(0)?
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164
That is R's way of printing a zero length vector (an integer one), so you could test for a bei...
Most efficient way to reverse a numpy array
... something like this:
arr = np.array(some_sequence)
reversed_arr = arr[::-1]
do_something(arr)
look_at(reversed_arr)
do_something_else(arr)
look_at(reversed_arr)
I'm not a numpy expert, but this seems like it would be the fastest way to do things in numpy. If this is what you are already doing,...
increment date by one month
Let's say I have a date in the following format: 2010-12-11 (year-mon-day)
17 Answers
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How do I concatenate or merge arrays in Swift?
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12 Answers
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How can I convert a dictionary into a list of tuples?
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11 Answers
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How to migrate back from initial migration in Django 1.7?
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You can do the same with Django 1.7+ also:
python manage.py migrate <app> zero
This clears <app> from migration history and drops all tables of <app>
See django docs for more info.
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Fastest way to get the first object from a queryset in django?
...return None if the queryset returns no objects.
These were added in Django 1.6, which was released in Nov 2013.
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Interview question: Check if one string is a rotation of other string [closed]
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First make sure s1 and s2 are of the same length. Then check to see if s2 is a substring of s1 concatenated with s1:
algorithm checkRotation(string s1, string s2)
if( len(s1) != len(s2))
return false
if( substring(s2,concat(s1,s1))
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