Sha256: 4e658af91855bf8ca5b93d17ccc0d694db5b53457af166cdde57b12fa0469df7
Contents?: true
Size: 502 Bytes
Versions: 26
Compression:
Stored size: 502 Bytes
Contents
class Array
# Returns the last index of the array.
# Returns nil is array has no elements.
#
# [1,2,3,4,5].last_index #=> 4
#
def last_index
return nil if self.length == 0
self.length - 1
end
end
# _____ _
# |_ _|__ ___| |_
# | |/ _ \/ __| __|
# | | __/\__ \ |_
# |_|\___||___/\__|
#
=begin test
require 'test/unit'
class TCArray < Test::Unit::TestCase
def test_last_index
assert_equal( [1,2,3,4,5].last_index, 4 )
end
end
=end
Version data entries
26 entries across 26 versions & 1 rubygems