Groovy Goodness: Getting the First and Last Element of an Iterable
Since Groovy 1.8.7 we can use the first() and last() methods on Iterable objects. With the first() method we get the first element and with the last() method we get the last element:
def list = 0..100
assert list.first() == 0
assert list.last() == 100
def abc = 'abc' as Character[]
assert abc.first() == 'a'
assert abc.last() == 'c'
def s = ['Groovy', 'Gradle', 'Grails', 'Rocks'] as Set
assert s.first() == 'Groovy'
assert s.last() == 'Rocks'
Written with Groovy 2.0.5
