Array.first

Kelly McCauley's picture
published by Kelly McCauley on Wed, 10/27/2010 - 20:50

Signature

array.first           #=> object or nil
array.first(number)   #=> new_array

array.first returns the first element of array or it returns nil if
array is empty. array.first(number) returns the first number elements of
array or it returns an empty array if array is empty.

Examples

a = ["a", "b", "c", "d", "e", "f"]

a.first           #=> "a"
[].first          #=> nil

a.first(0)        #=> []
a.first(1)        #=> ["a"]
a.first(99)       #=> ["a", "b", "c", "d", "e", "f"]
[].first(10)      #=> []

Documentation Reference

Ruby version 1.8.6

www.ruby-doc.org : Array.first