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How do I delete/remove a shell function?
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274
unset -f z
Will unset the function named z. A couple people have answered with:
unset z
bu...
How to subtract 2 hours from user's local time?
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answered Feb 9 '11 at 9:40
BrunoLMBrunoLM
84.4k7373 gold badges266266 silver badges420420 bronze badges
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Pandas aggregate count distinct
...about either of:
>>> df
date duration user_id
0 2013-04-01 30 0001
1 2013-04-01 15 0001
2 2013-04-01 20 0002
3 2013-04-02 15 0002
4 2013-04-02 30 0002
>>> df.groupby("date").agg({"duration": np.sum, "user_id": pd.Ser...
How to concatenate strings with padding in sqlite
...'ve used is to start with your target string, say '0000', concatenate '0000423', then substr(result, -4, 4) for '0423'.
Update: Looks like there is no native implementation of "lpad" or "rpad" in SQLite, but you can follow along (basically what I proposed) here: http://verysimple.com/2010/01/12/sql...
jQuery / Javascript - How do I convert a pixel value (20px) to a number value (20)
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edited Feb 28 '14 at 17:38
MrMakeIt
6666 bronze badges
answered Jun 11 '10 at 15:31
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Does MySQL included with MAMP not include a config file?
... parts of a configuration ... for example:
[mysqld]
max_allowed_packet = 64M
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Javascript split regex question
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answered Aug 24 '10 at 19:02
Daniel VandersluisDaniel Vandersluis
79.6k1717 gold badges153153 silver badges149149 bronze badges
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Determine distance from the top of a div to top of window with javascript
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241
You can use .offset() to get the offset compared to the document element and then use the scrol...
How much size “Null” value takes in SQL Server
I have a large table with say 10 columns. 4 of them remains null most of the times. I have a query that does null value takes any size or no size in bytes. I read few articles some of them are saying :
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