In rails is there some object has nil

Question

I know there some object has nil? method, I want to know is there some method with nil?

are you asking "How do I test an object to see if it is Nil?" — Mitch Wheat, Oct 29 '10 at 08:38

score 0 · Answer 1 · answered Nov 06 '12 at 16:58

0

No.

1.9.3p125 :002 > Object.methods.grep(/nil/)
 => [:nil?]

answered Nov 06 '12 at 16:58

Thilo

score 0 · Answer 2 · answered Oct 29 '10 at 08:43

0

w.nil?

inverse of

!w.nil?

answered Oct 29 '10 at 08:43

shingara

score 0 · Accepted Answer · edited May 23 '17 at 09:58

0

Summarizing:

If you are using rails (not just ruby) there are three methods in your toolkit: .nil?, .empty? and .blank?

Follow the link to see the good description

edited May 23 '17 at 09:58

Community

answered Oct 29 '10 at 13:18

Jonathan

score 0 · Answer 4 · answered Oct 29 '10 at 13:19

0

You could use present?, which acts as a sort of !blank?

answered Oct 29 '10 at 13:19

William

score 0 · Answer 5 · answered Oct 29 '10 at 22:24

0

you could use defined? as well

answered Oct 29 '10 at 22:24

apneadiving

5 Answers5