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Get dimension from XML and set text size in runtime
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Big-O for Eight Year Olds? [duplicate]
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293
One way of thinking about it is this:
O(N^2) means for every element, you're doing something wi...
How do I create a MongoDB dump of my database?
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83
Use mongodump:
$ ./mongodump --host prod.example.com
connected to: prod.example.com
all dbs
DAT...
Flask-SQLAlchemy import/context issue
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Sean VieiraSean Vieira
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Re-raise exception with a different type and message, preserving existing information
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Python 3 introduced exception chaining (as described in PEP 3134). This allows, when raising an exception, to cite an existing exception as the “cause”:
try:
frobnicate()
except KeyError as exc:
raise ValueError("Bad gra...
How to check whether a string is Base64 encoded or not
... if a string is base64 encoded or not:
^([A-Za-z0-9+/]{4})*([A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{2}==)?$
In base64 encoding, the character set is [A-Z, a-z, 0-9, and + /]. If the rest length is less than 4, the string is padded with '=' characters.
^([A-Za-z0-9+/]{4})* means the string starts with 0 ...
Pass ruby script file to rails console
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answered Nov 2 '13 at 23:52
AdrianAdrian
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Convert DataFrame column type from string to datetime, dd/mm/yyyy format
...t strict).
Here it is in action:
In [11]: pd.to_datetime(pd.Series(['05/23/2005']))
Out[11]:
0 2005-05-23 00:00:00
dtype: datetime64[ns]
You can pass a specific format:
In [12]: pd.to_datetime(pd.Series(['05/23/2005']), format="%m/%d/%Y")
Out[12]:
0 2005-05-23
dtype: datetime64[ns]
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Can I squash commits in Mercurial?
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sage444
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answered Nov 12 '09 at 21:47
Ry4an BraseRy4an Bra...
Input from the keyboard in command line application
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138
The correct way to do this is to use readLine, from the Swift Standard Library.
Example:
let ...