From: Bertram Scharpf <lists@...>
Date: 2009-07-08T12:29:57+09:00
Subject: Re: Manipulating Multi-Dimensional Array

Hi,
Am Mittwoch, 08. Jul 2009, 02:51:16 +0900 schrieb Tyler Knappe:
> irb(main):192:0> calendar = []
> irb(main):193:0> cal = []
> irb(main):194:0> for i in 0..6 do
> irb(main):195:1*   for j in 0..23 do
> irb(main):196:2*     cal[j] = j
> irb(main):197:2>     calendar[i] = cal
> irb(main):198:2>   end
> irb(main):199:1> end

The answer has been given; here's a more rudimentary example of
this pitfall:

  a = b = []
  b.push :x
  a     #=> [ :x]

Say instead of that:

  a, b = [], []

Yes, I like to express it in code lines.

Bertram


-- 
Bertram Scharpf
Stuttgart, Deutschland/Germany
http://www.bertram-scharpf.de