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What is the most efficient way to store a list in the Django models?
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edited Feb 17 '17 at 13:19
Community♦
111 silver badge
answered Jul 10 '09 at 15:23
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How to check whether a string contains a substring in Ruby
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1394
You can use the include? method:
my_string = "abcdefg"
if my_string.include? "cde"
puts "S...
Way to get all alphabetic chars in an array in PHP?
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edited Jan 11 '09 at 16:03
answered Jan 10 '09 at 23:05
PE...
How to Add Stacktrace or debug Option when Building Android Studio Project
...swered Feb 10 '14 at 10:19
pyus13pyus13
23.7k77 gold badges9292 silver badges107107 bronze badges
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Bootstrap 3 Navbar with Logo
I want to use the Bootstrap 3 default navbar with an image logo instead of text branding. What's the proper way of doing this without causing any issues with different screen sizes? I assume this a common requirement, but I haven't yet seen a good code sample. A key requirement other than having acc...
How do I add multiple arguments to my custom template filter in a django template?
...xample, if you want a filter that checks if variable X is in the list [1,2,3,4] you will want a template filter that looks like this:
{% if X|is_in:"1,2,3,4" %}
Now we can create your templatetag like this:
from django.template import Library
register = Library()
def is_in(var, args):
if a...
How to get all of the immediate subdirectories in Python
...l sorting (1, 2, 10), please have a look at https://stackoverflow.com/a/48030307/2441026
Results:
scandir is: 3x faster than walk, 32x faster than listdir (with filter), 35x faster than Pathlib and 36x faster than listdir and 37x (!) faster than glob.
Scandir: 0.977
Walk: ...
Detect if a NumPy array contains at least one non-numeric value?
...ing and will work regardless of shape.
numpy.isnan(myarray).any()
Edit: 30x faster:
import timeit
s = 'import numpy;a = numpy.arange(10000.).reshape((100,100));a[10,10]=numpy.nan'
ms = [
'numpy.isnan(a).any()',
'any(numpy.isnan(x) for x in a.flatten())']
for m in ms:
print " %.2f s"...
Entity Framework 4 vs NHibernate [closed]
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answered Oct 28 '09 at 23:32
John RaynerJohn Rayner
3,4101818 silver badges1414 bronze badges
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Have a reloadData for a UITableView animate when changing
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edited Jul 13 '17 at 6:11
Pang
8,1981717 gold badges7373 silver badges111111 bronze badges
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