Is Scala idiomatic coding style just a cool trap for writing inefficient code?

Question

I sense that the Scala community has a little big obsession with writing \"concise\", \"cool\", \"scala idiomatic\", \"one-liner\" -if possible- code. This

Answer 1

What about this?

def removeMax(xs: List[Int]) = {
  val buf = xs.toBuffer
  buf -= (buf.max)
}

A bit more ugly, but faster:

def removeMax(xs: List[Int]) = {
  var max = xs.head
  for ( x <- xs.tail ) 
  yield {
    if (x > max) { val result = max; max = x; result}
    else x
  }
}