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How can I find the first occurrence of a sub-string in a python string?
So if my string is "the dude is a cool dude".
I'd like to find the first index of 'dude':
5 Answers
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How to add http:// if it doesn't exist in the URL?
How can I add http:// to a URL if it doesn't already include a protocol (e.g. http:// , https:// or ftp:// )?
8 Answe...
MySQL Insert into multiple tables? (Database normalization?)
... the LAST_INSERT_ID() will be updated to that of table 2, and not table 1. If you still need that of table 1 afterwards, we will have to store it in a variable. This leads us to ways 2 and 3:
Will stock the LAST_INSERT_ID() in
a MySQL variable:
INSERT ...
SELECT LAST_INSERT_ID() INTO @mysql_variabl...
How to force composer to reinstall a library?
...ge stuff here and there in the libraries' source to learn how things work. If these were version controlled it would be very easy to revert them back to their original state.
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Pandas dataframe get first row of each group
... first
2 first
3 first
4 second
5 first
6 first
7 fourth
If you need id as column:
>>> df.groupby('id').first().reset_index()
id value
0 1 first
1 2 first
2 3 first
3 4 second
4 5 first
5 6 first
6 7 fourth
To get n first records, you can ...
Using Moq to determine if a method is called
It is my understanding that I can test that a method call will occur if I call a higher level method, i.e.:
3 Answers
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SQL DROP TABLE foreign key constraint
If I want to delete all the tables in my database like this, will it take care of the foreign key constraint? If not, how do I take care of that first?
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Difference between Big-O and Little-O Notation
What is the difference between Big-O notation O(n) and Little-O notation o(n) ?
4 Answers
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How to put a line comment for a multi-line command [duplicate]
...sagree, Marwan's answer is clever but feels like an abuse of substitution. If anything I'd say Philipp's answer is closer to something I'd want to do.
– Alec
Sep 20 '17 at 18:27
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What does collation mean?
...ir accents and other features, collation changes. For example, though the different accented forms of a may exist at disparate code points, they may all need to be sorted as if they were the same letter.
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