Remove null items from a list in Groovy

Question

What is the best way to remove null items from a list in Groovy?

ex: [null, 30, null]

want to return: [30]

Answer 1

Just use minus:

[null, 30, null] - null

Answer 2

This does an in place removal of all null items.

myList.removeAll { !it }

If the number 0 is in your domain you can check against null

myList.removeAll { it == null }