[virtualwhys]

Good points, I tend to mix it up, rarely going parens-free style, but also not parens by default either.

If you wanted to be really explicit you could do:

    list.filter(x=> isEven(x)).foreach(x=> println(x))

yuck ;-)

[ponzao]

That example is not quite equivalent, because now you are not passing `isEven` or `println` as arguments, you are passing anonymous functions that call `isEven` and `println`.