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Can you break from a Groovy “each” closure?
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This example will abort before processing the whole list:
def a = [1, 2, 3, 4, 5, 6, 7]
a.find {
if (it > 5) return true // break
println it // do the stuff that you wanted to before break
return false // keep looping
}
Prints
1
2
3
4
5
but doesn't print 6 or 7.
It's also ...
Convert command line arguments into an array in Bash
...nto the $@ value, use set:
$ set -- apple banana "kiwi fruit"
$ echo "$#"
3
$ echo "$@"
apple banana kiwi fruit
Understanding how to use the argument structure is particularly useful in POSIX sh, which has nothing else like an array.
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All possible array initialization syntaxes
...s above, the first two could replace the string[] on the left with var (C# 3+), as the information on the right is enough to infer the proper type. The third line must be written as displayed, as array initialization syntax alone is not enough to satisfy the compiler's demands. The fourth could also...
Is there a way to squash a number of commits non-interactively?
I'm trying to squash a range of commits - HEAD to HEAD~3. Is there a quick way to do this, or do I need to use rebase --interactive?
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UnboundLocalError on local variable when reassigned after first use
The following code works as expected in both Python 2.5 and 3.0:
12 Answers
12
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Can't access RabbitMQ web management interface after fresh install
I've installed the latest RabbitMQ server (rabbitmq-server-3.3.0-1.noarch.rpm) on a fresh Centos 5.10 VM according to the instructions on the official site.
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Wrapping null-returning method in Java with Option in Scala?
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183
The Option companion object's apply method serves as a conversion function from nullable referen...
Understanding how recursive functions work
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answered Sep 5 '14 at 0:43
Catfish_ManCatfish_Man
38.6k1111 gold badges6363 silver badges8181 bronze badges
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Scala: what is the best way to append an element to an Array?
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3 Answers
3
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