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Checking if all elements in a list are unique
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answered Mar 11 '11 at 20:47
yanyan
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How get integer value from a enum in Rails?
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142
You can get the integer values for an enum from the class the enum is on:
Model.sale_infos # Pl...
Case-Insensitive List Search
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As of .NET 2.0, this is now easily done - look at shaxby's answer below.
– Joe
May 28 '13 at 20:57
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Formatting code snippets for blogging on Blogger [closed]
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I've created a blog post entry which explains how to add code syntax highlighting to blogger u...
How do you use variables in a simple PostgreSQL script?
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132
Complete answer is located in the official PostgreSQL documentation.
You can use new PG9.0 anon...
How can I selectively escape percent (%) in Python strings?
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answered May 21 '12 at 0:03
Nolen RoyaltyNolen Royalty
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Pandas aggregate count distinct
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How 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": ...
Is there an eval() function in Java? [duplicate]
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12 Answers
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In Javascript, how to conditionally add a member to an object?
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22 Answers
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