Scala: How to print all values in a long vector without ellipsis

Question

I'd like to print all values of a vector which has about 700 elements. By default, a relatively small number (maybe 100 or so) are printed, and then an ellipsis (...). Is there a way to print all the values?

Of course, I could go through the elements one by one, but I'm hoping to avoid that.

EDIT: I am printing stuff via println. Unless I've misunderstood something, changing maxPrintString doesn't seem to affect println output (or toString, since I suppose println must be calling toString).

Possible duplicate of [settings.maxPrintString for Scala 2.9 REPL](http://stackoverflow.com/questions/9516567/settings-maxprintstring-for-scala-2-9-repl) — Gabriele Petronella, Oct 21 '15 at 17:45

score 1 · Accepted Answer · answered Oct 21 '15 at 18:05

1

If you're using scala's REPL, it will print out the value of whatever expression you type in, but if the toString of that value would be unreasonably long, it truncates it and adds ....

If you want the whole thing, you just need to explicily print it. Use println.

scala> val  list = List.fill(700)('a')
list: List[Char] = List(a, a, /*omitting some for brevity*/, a, ...

scala> println(list)
// it actually prints everything

// or you could print individual elements
scala> list foreach println

answered Oct 21 '15 at 18:05

Dylan

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Thanks, println works as you point out. I don't know why I didn't see that before, I thought I tried several things and couldn't make it work. Anyway thanks for putting me on the right track. – Robert Dodier Oct 21 '15 at 18:29

Scala: How to print all values in a long vector without ellipsis

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