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How do I iterate over an NSArray?
I'm looking for the standard idiom to iterate over an NSArray. My code needs to be suitable for OS X 10.4+.
8 Answers
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A python class that acts like dict
...ict actually contains 2 dict-instance: The 1st is the inherited container, and the 2nd is the dict holding the class-attributes - you may avoid that by using slots.
– ankostis
Mar 4 '16 at 10:37
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How can I view all the git repositories on my machine?
...which I can see all the git repositories that exist on my machine? Any command for that?
10 Answers
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bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...tid]: This uses the thread ID as a key. There may be many reads in-flight, and we want to store a start timestamp to each. How? We could construct a unique identifier for each read, and use that as the key. But because kernel threads can only be executing one syscall at a time, we can use the thread...
When should I use cross apply over inner join?
...NER JOIN condition.
You could probably do something like that using CTE's and window function:
WITH t2o AS
(
SELECT t2.*, ROW_NUMBER() OVER (PARTITION BY t1_id ORDER BY rank) AS rn
FROM t2
)
SELECT t1.*, t2o.*
FROM t1
INNER JOIN
t2o
ON t2o.t1...
How can Perl's print add a newline by default?
...to the beginning of your program. Or you can use Modern::Perl to get this and other features.
See perldoc feature for more details.
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What's the rationale for null terminated strings?
As much as I love C and C++, I can't help but scratch my head at the choice of null terminated strings:
18 Answers
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Change IPython/Jupyter notebook working directory
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That worked for me on windows 10 pro. Just open CMD and type: jupyter notebook --notebook-dir="D:\change_this_path"
– TharsDimitris
Dec 14 '18 at 9:11
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Go install fails with error: no install location for directory xxx outside GOPATH
...User/me/gopath).
After either, going into the go-statsd-client directory and typing go install will work, and so will typing go install go-statsd-client from anywhere in the filesystem. The built binaries will go into $GOPATH/bin.
As an unrelated suggestion, you probably want to namespace your pa...
Why use 'git rm' to remove a file instead of 'rm'?
... answered Sep 15 '11 at 16:51
AndyAndy
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