Equivalent to Ruby's #tap method in Scala [duplicate]
Here is one implementation on github: https://gist.github.com/akiellor/1308190
Reproducing here:
import collection.mutable.MutableList
import Tap._
class Tap[A](any: A) {
def tap(f: (A) => Unit): A = {
f(any)
any
}
}
object Tap {
implicit def tap[A](toTap: A): Tap[A] = new Tap(toTap)
}
MutableList[String]().tap({m:MutableList[String] =>
m += "Blah"
})
MutableList[String]().tap(_ += "Blah")
MutableList[String]().tap({ l =>
l += "Blah"
l += "Blah"
})