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How can I remove a character from a string using Javascript?
... one instance of r in the string.
However, it is always the character at index 4 (so the 5th character).
18 Answers
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Append column to pandas dataframe
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@BenDundee I see. That method discards the unique index and has even weirder side effects in more complicated cases, though. For instance if I had two columns named 'data', grouping/summing would start summing up the different data columns, which is almost certainly not what...
Can I use CASE statement in a JOIN condition?
...N portion of the clause. You could use it thusly:
SELECT *
FROM sys.indexes i
JOIN sys.partitions p
ON i.index_id = p.index_id
JOIN sys.allocation_units a
ON CASE
WHEN a.type IN (1, 3) AND a.container_id = p.hobt_id THEN 1
WHEN a.type IN (2)...
Do a “git export” (like “svn export”)?
...your archive. Read more...
Note: If you are interested in exporting the index, the command is
git checkout-index -a -f --prefix=/destination/path/
(See Greg's answer for more details)
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grep, but only certain file extensions
...es)
'searchterm': What to search
./: Start at current directory.
Source: PHP Revolution: How to Grep files in Linux, but only certain file extensions?
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c++ boost::multi_index composite keys efficiency - c++1y / stl - 清泛IT社区，为创新赋能！
...ng time reader first time poster! I'm playing around with the boost::multi_index container stuff and have a rather in-depth question that hopefully a boost or C++ container expert might know (my knowledge in C++ containers is pretty basic). For reference, the boost documentation on composite keys ca...
Postgresql: Conditionally unique constraint
... conditional) UNIQUE constraint - however, you can create a partial unique index. PostgreSQL uses unique indexes to implement unique constraints, so the effect is the same, you just won't see the constraint listed in information_schema.
CREATE UNIQUE INDEX stop_myc ON stop (col_a) WHERE (col_b is N...
Xcode stuck on Indexing
...g for 2 months stopped working for no reason because Xcode got stucked on "Indexing". I can't Build the project anymore. If I try to build, Xcode freezes and I have to force quit. This happens only with this project.
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Get: TypeError: 'dict_values' object does not support indexing when using python 3.2.3 [duplicate]
... OP's code is unpythonic for everyone looking at this - in Python we avoid indexes (slower, uglier). The correct way is as per @DavidRobinson's answer: dict(zip(names, d.values())). Of course this code also relies on values being sorted as names which is by no means guaranteed.
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Pythonic way to find maximum value and its index in a list?
...value in a list, I can just write max(List) , but what if I also need the index of the maximum value?
10 Answers
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