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What's the difference between @Secured and @PreAuthorize in spring security 3?
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axtavtaxtavt
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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)
>>>...
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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Which characters need to be escaped when using Bash?
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edited May 29 '17 at 15:34
answered Nov 18 '13 at 16:47
J...
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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How to delete migration files in Rails 3
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Chris Frederick
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answered Oct 6 '10 at 16:56
Fábio BatistaFábio B...
Calculate difference between two datetimes in MySQL
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3 Answers
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Remove rows with duplicate indices (Pandas DataFrame and TimeSeries)
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I would suggest using the duplicated method on the Pandas Index itself:
df3 = df3[~df3.index.duplicated(keep='first')]
While all the other methods work, the currently accepted answer is by far the least performant for the provided example. Furthermore, while the groupby method is only slightly les...
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...