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Calling constructor from other constructor in same class
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answered Mar 29 '16 at 19:46
ThomasThomas
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Rails has_and_belongs_to_many migration
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answered Feb 16 '16 at 3:57
Jan KlimoJan Klimo
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Finding the type of an object in C++
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167
dynamic_cast should do the trick
TYPE& dynamic_cast<TYPE&> (object);
TYPE* dynam...
Amazon S3 boto - how to create a folder?
...uld require
– scooter-dangle
Feb 4 '16 at 18:18
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show 3 more comments
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How to determine if a record is just created or updated in after_save
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169
I was looking to use this for an after_save callback.
A simpler solution is to use id_changed...
How to use JavaScript variables in jQuery selectors?
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edited Mar 27 '16 at 11:33
answered Mar 27 '16 at 9:58
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Is it possible to use getters/setters in interface definition?
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answered Dec 13 '16 at 11:32
Meirion HughesMeirion Hughes
19.3k88 gold badges5959 silver badges109109 bronze badges
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In Scala, what exactly does 'val a: A = _' (underscore) mean?
...lue explicitly.
– Shuklaswag
Jul 9 '16 at 20:43
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@Shuklaswag: Only if you know its an integer. I...
How can I plot with 2 different y-axes?
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## Plot first set of data and draw its axis
plot(time, betagal.abs, pch=16, axes=FALSE, ylim=c(0,1), xlab="", ylab="",
type="b",col="black", main="Mike's test data")
axis(2, ylim=c(0,1),col="black",las=1) ## las=1 makes horizontal labels
mtext("Beta Gal Absorbance",side=2,line=2.5)
box()
##...
What makes JNI calls slow?
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edited Jul 29 '14 at 16:36
answered Oct 18 '11 at 14:54
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