Ruby Array Ranges

Question

(2011..1995).to_a 

returns an array

 (Time.now.year.to_i..1995).to_a 

no. Why?

Answer 1

to try

 > 2011.downto(1995).to_a => [2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995] 

Answer 2

You can use this

(Time.now.year.to_i) .downto (1995) .to_a

Answer 3

I do not see this working. Here's irb on WinXP ...

 irb(main):009:0> (2011..1995).to_a => [] irb(main):010:0> (Time.now.year.to_i..1995).to_a => [] irb(main):011:0> 

Answer 4

(1995.Time.now.year.to_i) .to_a works. The end must be more than the beginning.

Answer 5

I can not reproduce your results. Both of these expressions return an array.

Of course, since both ranges are empty, expressions always return an empty array, but this does not apply to your question.