Sha256: ed78f858e3835ba0fb7a432d87c51ef2dff684bc99dd1e5542fb500390cf23d2
Contents?: true
Size: 410 Bytes
Versions: 7
Compression:
Stored size: 410 Bytes
Contents
class Array
#
# Returns the _only_ element in the array. Raises an IndexError if
# the array's size is not 1.
#
# [5].only # -> 5
# [1,2,3].only # -> IndexError
# [].only # -> IndexError
#
# CREDIT Noah Gibbs
# CREDIT Gavin Sinclair
def only
unless size == 1
raise IndexError, "Array#only called on non-single-element array"
end
first
end
end
Version data entries
7 entries across 7 versions & 1 rubygems