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How does interfaces with construct signatures work?
...in interfaces are not implementable in classes; they're only for defining em>x m>isting JS APIs that define a 'new'-able function. Here's an em>x m>ample involving interfaces new signatures that does work:
interface ComesFromString {
name: string;
}
interface StringConstructable {
new(n: string): Co...
pandas GroupBy columns with NaN (missing) values
...Missing Data section of the docs:
NA groups in GroupBy are automatically em>x m>cluded. This behavior is consistent with R, for em>x m>ample.
One workaround is to use a placeholder before doing the groupby (e.g. -1):
In [11]: df.fillna(-1)
Out[11]:
a b
0 1 4
1 2 -1
2 3 6
In [12]: df.fillna(-1...
Converting numpy dtypes to native python types
..., how do I automatically convert it to its closest python data type? For em>x m>ample,
12 Answers
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Total memory used by Python process?
... a useful solution that works for various operating systems, including Linum>x m>, Windows 7, etc.:
import os
import psutil
process = psutil.Process(os.getpid())
print(process.memory_info().rss) # in bytes
On my current Python 2.7 install with psutil 5.6.3, the last line should be
print(process.m...
In Django - Model Inheritance - Does it allow you to override a parent model's attribute?
...from it:
class AbstractPlace(models.Model):
name = models.CharField(mam>x m>_length=20)
rating = models.DecimalField()
class Meta:
abstract = True
class Place(AbstractPlace):
pass
class LongNamedRestaurant(AbstractPlace):
name = models.CharField(mam>x m>_length=255)
food_ty...
Set CSS property in Javascript?
...var element = document.createElement('select');
element.style.width = "100pm>x m>";
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HTML 5 tag vs Flash video. What are the pros and cons?
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Nem>x m>t
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tag vs tag
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In HTML 4, the type attribute is required. In my em>x m>perience, all
browsers will default to tem>x m>t/javascript if it is absent, but that
behaviour is not defined anywhere. While you can in theory leave it
out and assume it will be interpreted as JavaScript, it's invalid
H...
What regular em>x m>pression will match valid international phone numbers?
...1234 (UK) is also perfectly valid if written 0044 8984 1234 which this regem>x m>p (and on other answers as well) does not support.
– m>X m>erom>x m>oid
Aug 11 '15 at 15:29
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Java Reflection: How to get the name of a variable?
...Java Reflection, is it possible to get the name of a local variable? For em>x m>ample, if I have this:
8 Answers
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