assign "it" in each iteration (groovy)

Question

Hey, i try to trim each string item of an list in groovy

list.each() { it = it.trim(); }

But this only works within the closure, in the list the strings are still " foo", "bar " and " groovy ".

How can i achieve that?

Answer 1

list = list.collect { it.trim() }

Answer 2

You could also use the spread operator:

def list = [" foo", "bar ", " groovy "]
list = list*.trim()
assert "foo" == list[0]
assert "bar" == list[1]
assert "groovy" == list[2]