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What is the difference between “text” and new String(“text”)?
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How do I get the row count of a pandas DataFrame?
...setup=lambda n: pd.DataFrame(np.arange(n * 3).reshape(n, 3)),
n_range=[2**k for k in range(25)],
kernels=[
lambda data: data.shape[0],
lambda data: data[0].count(),
lambda data: len(data.index),
],
labels=["data.shape[0]", "data[0].count()", "len(data.index)"]...
Problems installing the devtools package
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edited May 23 '17 at 11:33
Community♦
111 silver badge
answered Jan 4 '14 at 17:15
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Select top 10 records for each category
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228
If you are using SQL 2005 you can do something like this...
SELECT rs.Field1,rs.Field2
F...
Correct way of using JQuery-Mobile/Phonegap together?
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edited Oct 22 '15 at 19:36
user241244
answered Oct 10 '12 at 13:59
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How do I add multiple arguments to my custom template filter in a django template?
... example, 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...
Converting milliseconds to a date (jQuery/JavaScript)
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var date = new Date(time);
alert(date.toString()); // Wed Jan 12 2011 12:42:46 GMT-0800 (PST)
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Using Pairs or 2-tuples in Java [duplicate]
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324
I don't think there is a general purpose tuple class in Java but a custom one might be as easy ...
Rename a dictionary key
... entirely new one using a comprehension.
>>> OrderedDict(zip('123', 'abc'))
OrderedDict([('1', 'a'), ('2', 'b'), ('3', 'c')])
>>> oldkey, newkey = '2', 'potato'
>>> OrderedDict((newkey if k == oldkey else k, v) for k, v in _.viewitems())
OrderedDict([('1', 'a'), ('potat...