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What's the difference between the Dependency Injection and Service Locator patterns?
...ld love to see a prettier solution.
– Charlie Rudenstål
Jan 9 '14 at 11:43
Direct link to comparison: martinfowler.co...
Border for an Image view in Android?
...the background of the Image View as Drawable. It works.
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#FFFFFF" />
<stroke android:width="1dp" android:color="#000000" />
<padding ...
How to remove the default arrow icon from a dropdown list (select element)?
...
Joäo Cunha's method checked and used succesfully. When you check it out, don't forget to open the link in firefox!
– NoobishPro
May 15 '14 at 9:19
...
How do you add CSS with Javascript?
How do you add CSS rules (eg strong { color: red } ) by use of Javascript?
14 Answers
...
Django rest framework, use different serializers in the same ModelViewSet
...ly different than the corresponding http methods.
– Håken Lid
Apr 21 '18 at 10:48
add a comm...
How to draw border on just one side of a linear layout?
...
You can use this to get border on one side
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle">
<solid android:color="#FF0000" />
</shape&...
Remote branch is not showing up in “git branch -r”
...te update stuff actually started working. Thanks!
– PålOliver
Jul 5 '13 at 9:28
2
For some reaso...
How can I force division to be floating point? Division keeps rounding down to 0?
... to coerce one of the operands to a float. One robust solution is a / (b * 1.0). In a fresh Python shell:
>>> 1/(2 * 1.0)
0.5
Also robust is truediv from the operator module operator.truediv(a, b), but this is likely slower because it's a function call:
>>> from operator import tr...
What are “named tuples” in Python?
...a point as a tuple (x, y). This leads to code like the following:
pt1 = (1.0, 5.0)
pt2 = (2.5, 1.5)
from math import sqrt
line_length = sqrt((pt1[0]-pt2[0])**2 + (pt1[1]-pt2[1])**2)
Using a named tuple it becomes more readable:
from collections import namedtuple
Point = namedtuple('Point', 'x ...
how does multiplication differ for NumPy Matrix vs Array classes?
...
The main reason to avoid using the matrix class is that a) it's inherently 2-dimensional, and b) there's additional overhead compared to a "normal" numpy array. If all you're doing is linear algebra, then by all means, feel free t...