Array.nitems

Signature

array.nitems    #=> integer

array.nitems returns the number of non-nil elements contained
in array.

Examples

a = [1, 2, 3, 4, 5]
a.nitems                    #=> 5
a = [1, nil, nil, 4, nil]
a.nitems                    #=> 2
a = [nil, nil, nil, nil]
a.nitems                    #=> 0

Documentation Reference

Ruby version 1.8.6

www.ruby-doc.org : Array.nitems