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How do you suppress output in IPython Notebook?
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ASP.NET Repeater bind List
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214
Just use <%# Container.DataItem.ToString() %>
If you are worried about null values you ma...
How to synchronize a static variable among threads running different instances of a class in Java?
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194
There are several ways to synchronize access to a static variable.
Use a synchronized static m...
How to change the default GCC compiler in Ubuntu?
I have installed gcc-3.3/g++-3.3 on ubuntu 11.04 which already has gcc/g++-4.4. So in my system both gcc-3.3 and 4.4 are available. I am able to call both compilers as I want. If I just call the command gcc then gcc-4.4 will get called. To call gcc-3.3, I have to use the command gcc-3.3 .
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How to parse a JSON string to an array using Jackson
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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...
Changing Mercurial “Default” Parent URL
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149
You can even add multiple entries in the [paths] section of your .hg/hgrc file.
[paths]
defaul...
Require either of two arguments using argparse
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answered Jun 22 '12 at 11:14
jlengrandjlengrand
9,77366 gold badges5050 silver badges7272 bronze badges
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what is the preferred way to mutate a React state?
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