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Predicate Delegates in C#
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A predicate is a function that returns true or false. A predicate delegate is a reference to ...
What's the difference between @Secured and @PreAuthorize in spring security 3?
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axtavtaxtavt
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Formula to determine brightness of RGB color
... → sqrt( 0.299*R^2 + 0.587*G^2 + 0.114*B^2 ) (thanks to @MatthewHerbst) [3]
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Reading an Excel file in python using pandas
...dummydata.xlsx")
>>> xl.sheet_names
[u'Sheet1', u'Sheet2', u'Sheet3']
>>> df = xl.parse("Sheet1")
>>> df.head()
Tid dummy1 dummy2 dummy3 dummy4 dummy5 \
0 2006-09-01 00:00:00 0 5.894611 0.605211 3.842871 8.265307
1 2006-09-01 01...
Append integer to beginning of list in Python [duplicate]
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833
>>>var=7
>>>array = [1,2,3,4,5,6]
>>>array.insert(0,var)
>>>...
How to empty/destroy a session in rails?
...ides.rubyonrails.org/security.html#session-expiry
– m33lky
Feb 24 '12 at 7:14
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Should I use document.createDocumentFragment or document.createElement
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edited Aug 3 '14 at 13:39
answered Aug 3 '10 at 14:04
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Why should we NOT use sys.setdefaultencoding(“utf-8”) in a py script?
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As per the documentation: This allows you to switch from the default ASCII to other encodings su...
Calculate difference between two datetimes in MySQL
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3 Answers
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Multiple levels of 'collection.defaultdict' in Python
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347
Use:
from collections import defaultdict
d = defaultdict(lambda: defaultdict(int))
This wil...