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What are file descriptors, explained in simple terms?
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Delete local Git branches after deleting them on the remote repo
...r, or any other branch for that matter, doesn't get removed by greping for more. In that case you would go:
git branch --merged | grep -v "\*" | grep -v "YOUR_BRANCH_TO_KEEP" | xargs -n 1 git branch -d
So if we wanted to keep master, develop and staging for instance, we would go:
git branch --me...
PHP Constants Containing Arrays?
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How can I hash a password in Java?
...TheTosters Yes, the execution time will be longer for incorrect passwords; more specifically, wrong passwords will take the same time as correct passwords. It prevents timing attacks, although I confess I can't think of a practical way to exploit such a vulnerability in this case. But you don't cut ...
How to execute a bash command stored as a string with quotes and asterisk [duplicate]
... it's naked or in double quoted strings: use single quotes.
MYSQL='mysql AMORE -u username -ppassword -h localhost -e'
QUERY="SELECT "'*'" FROM amoreconfig" ;# <-- "double"'single'"double"
eval $MYSQL "'$QUERY'"
Bonus: It also reads nice: eval mysql query ;-)
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How to use sed/grep to extract text between two words?
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How is CountDownLatch used in Java Multithreading?
...'s not reusable: once count reaches zero you cannot use CountDownLatch any more.
Edit:
Use CountDownLatch when one thread (like the main thread) requires to wait for one or more threads to complete, before it can continue processing.
A classical example of using CountDownLatch in Java is a ser...
Why does Math.Round(2.5) return 2 instead of 3?
... look at the nearest Java equivalent enum (RoundingMode) which offers even more options. (It doesn't just deal with midpoints.)
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jQuery selector regular expressions
...ither way, passing a function into .filter() is easier and feels cleaner / more readable to me.
– James T
Mar 2 '18 at 22:49
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