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How can I detect when the mouse leaves the window?
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Please keep in mind that my answer has aged a lot.
This type of behavior is usually desired while implementing drag-drop behavior on an html page. The solution below was tested on IE 8.0.6, FireFox 3.6.6, Opera 10.53, and Safari 4 on an MS Windows XP machine.
First a little function from Peter...
Are HTTP cookies port specific?
...es running on one machine. I just want to know if they share their cookies or whether the browser distinguishes between the two server sockets.
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Javascript AES encryption [closed]
Is there a library available for AES 256-bits encryption in Javascript?
15 Answers
15
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Cell spacing in UICollectionView
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I know that the topic is old, but in case anyone still needs correct answer here what you need:
Override standard flow layout.
Add implementation like that:
- (NSArray *) layoutAttributesForElementsInRect:(CGRect)rect {
NSArray *answer = [super layoutAttributesForElementsInRect:r...
why unaligned apk is needed?
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Thanks for the quick reply. So, we can say unaligned apk is just a interim thing?
– Youngjae
Feb 27 '14 at 3:13
1...
What is getattr() exactly and how do I use it?
...n advance which attribute you want (it comes from a string). Very useful for meta-programming.
you want to provide a default value. object.y will raise an AttributeError if there's no y. But getattr(object, 'y', 5) will return 5.
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Applying function with multiple arguments to create a new pandas column
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Alternatively, you can use numpy underlying function:
>>> import numpy as np
>>> df = pd.DataFrame({"A": [10,20,30], "B": [20, 30, 10]})
>>> df['new_column'] = np.multiply(df['A'], df['B'])
>>> df
A B new_column
0 10 20 200
1 20 30 ...
Use cases for the 'setdefault' dict method
...ition of collections.defaultdict in Python 2.5 greatly reduced the need for dict 's setdefault method. This question is for our collective education:
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Build error: You must add a reference to System.Runtime
...that looks like this by default:
<compilation debug="true" targetFramework="4.5"/>
Once expanded I then added the following new configuration XML as I was instructed:
<assemblies>
<add assembly="System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11...
Operation on every pair of element in a list
...product() in the itertools module. It does exactly what you describe.
import itertools
my_list = [1,2,3,4]
for pair in itertools.product(my_list, repeat=2):
foo(*pair)
This is equivalent to:
my_list = [1,2,3,4]
for x in my_list:
for y in my_list:
foo(x, y)
Edit: There are two...