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What is the difference between Raising Exceptions vs Throwing Exceptions in Ruby?
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edited May 2 '13 at 14:23
Mason Wan
11811 silver badge88 bronze badges
answered Sep 9 '08...
How to remove last n characters from every element in the R vector
...("foo_bar","bar_foo","apple","beer")
a = data.frame("data"=char_array,"data2"=1:4)
a$data = substr(a$data,1,nchar(a$data)-3)
a should now contain:
data data2
1 foo_ 1
2 bar_ 2
3 ap 3
4 b 4
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Scala: List[Future] to Future[List] disregarding failed futures
...ence(...) but there's a twist... The list I'm given usually has around 10-20 futures in it, and it's not uncommon for one of those futures to fail (they are making external web service requests). Instead of having to retry all of them in the event that one of them fails, I'd like to be able to get ...
how to override left:0 using CSS or Jquery?
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238
The default value for left is auto, so just set it to that and you will "reset" it.
.elem {
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Easiest way to rename a model using Django/South?
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./manage.py schemamigration yourapp rename_foo_to_bar --empty
(Update 2: try --auto instead of --empty to avoid the warning below. Thanks to @KFB for the tip.)
If you're using an older version of south, you'll need startmigration instead of schemamigration.
Then manually edit the migration f...
Cast to int vs floor
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edited Dec 30 '14 at 21:44
Matt Ball
323k8585 gold badges599599 silver badges672672 bronze badges
a...
Importing Maven project into Eclipse
I want to import existing Maven project into Eclipse. I found 2 ways to do it:
8 Answers
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Why is Scala's immutable Set not covariant in its type?
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answered Mar 24 '09 at 18:34
Daniel SpiewakDaniel Spiewak
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Xcode 4 - detach the console/log window
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125
Go to Xcode preferences, and open the Behavior tab.
Tell Xcode to open a tab called "Debugger"...