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Unignore subdirectories of ignored directories in Git
...as the most-upvoted answer is incorrect, and easily demonstrable as such.
Start with ignoring everything in uploads/*:
mkdir -p uploads/rubbish/stuff/KEEP_ME
touch uploads/a uploads/rubbish/a uploads/rubbish/stuff/a uploads/rubbish/stuff/KEEP_ME/a
echo '/uploads/*' >> .gitignore
git init
git...
Add days to JavaScript Date
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This approach doesn't work across years. If your starting date is from a few years ago, getDate() returns the day of that year. Then, calling setDate sets the day in the current year. So it is NOT a good general solution. @AnthonyWJones's answer actually works correctly.
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Setting variable to NULL after free
... code between the declaration and the first initialization, somebody might start using the variable even though it has no value yet. If you null-initialize, you get the segfault; without, you might again read or write random memory. Likewise, if the variable later gets initialized only conditionally...
Difference between partition key, composite key and clustering key in Cassandra?
...ition! This means we will always read as few partitions as possible (first start with the newest, then move to older and so on, rather than jumping between them).
In fact, in extreme cases you would also need to use the hash of a join_date rather than a join_date alone - so that if you query for la...
NHibernate ISession Flush: Where and when to use it, and why?
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Starting in NHibernate 2.0, transactions are required for DB operations. Therefore, the ITransaction.Commit() call will handle any necessary flushing. If for some reason you aren't using NHibernate transactions, then there ...
In git, what is the difference between merge --squash and rebase?
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Let's start by the following example:
Now we have 3 options to merge changes of feature branch into master branch:
Merge commits
Will keep all commits history of the feature branch and move them into the master branch
Will a...
Correct format specifier to print pointer or address?
... the number is uniformly the same height and the characteristic dip at the start of 0xA1B2CDEF appears thus, not like 0xa1b2cdef which dips up and down along the number too. Your choice though, within very broad limits. The (uintptr_t) cast is unambiguously recommended by GCC when it can read the ...
Dictionary vs Object - which is more efficient and why?
... Yes, that's true within the loop, but in the second test i starts from 0 again.
– Barney Szabolcs
Aug 27 '19 at 12:59
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REST API Authentication
...his solution, for example if any hacker sniff the link with session_id and start sending requests which content correct session_id ? We can solve it by add ssl to server connection, but what about clients?
– Ahmad Samilo
Apr 25 '15 at 8:01
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Create a tar.xz in one command
...; directory.tar.xz
Explanation
tar cf - directory reads directory/ and starts putting it to TAR format. The output of this operation is generated on the standard output.
| pipes standard output to the input of another program...
... which happens to be xz -z -. XZ is configured to compress (-z) ...