Sha256: 526a9ea7e9d219fbebadc48a65c93bd89a8ba9169996ae578ae2b96a88a59c61
Contents?: true
Size: 1.16 KB
Versions: 25
Compression:
Stored size: 1.16 KB
Contents
class Array
# Like #first but returns the first element
# in a new array.
#
# [1,2,3].head #=> [1]
#
def head
slice(0,1)
end
# Returns an array from second element to last element.
#
# [1,2,3].tail #=> [2,3]
#
def tail
slice(1,length-1)
end
# Like #last, returning the last element
# in an array.
#
# [1,2,3].foot #=> [3]
#
def foot
slice(-1,1)
end
# Returns an array of the first element upto,
# but not including, the last element.
#
# [1,2,3].body #=> [1,2]
#
#--
# Better name for this? (bulk, perhaps?)
#++
def body
slice(0,length-1)
end
end
# _____ _
# |_ _|__ ___| |_
# | |/ _ \/ __| __|
# | | __/\__ \ |_
# |_|\___||___/\__|
#
=begin test
require 'test/unit'
class TCArray < Test::Unit::TestCase
def test_head
a = [1,2,3,4,5]
assert_equal( [1], a.head )
end
def test_tail
a = [1,2,3,4,5]
assert_equal( [2,3,4,5], a.tail )
end
def test_foot
a = [1,2,3,4,5]
assert_equal( [5], a.foot )
end
def test_body
a = [1,2,3,4,5]
assert_equal( [1,2,3,4], a.body )
end
end
=end
Version data entries
25 entries across 25 versions & 1 rubygems