From: "Peña, Botp" <botp@...>
Date: 2007-11-08T14:01:22+09:00
Subject: Re: how to delete array

On Behalf Of Surjit Nameirakpam
# Array1 = [1,2,3,4,7,4]
# indexes to be delted is collected in an array del=[1,3] ..i.e 
# i should 
# delete 2 and 4 values
# i tried using
# Array1.delete_at(del[])
# but this doesn't work

loop thru your indexes to the array, ie,

> array = [1,2,3,4,7,4]
=> [1, 2, 3, 4, 7, 4]
> del=[1,3]
=> [1, 3]
> del.each{|i| array.delete_at(i)}
=> [1, 3]
> array
=> [1, 3, 4, 4]

or you can then create your own fancy delete_at method

> class Array
> def delete_atx(d)
>   d.each{|i| self.delete_at(i)}
> end
> end
=> nil
> array = [1,2,3,4,7,4]
=> [1, 2, 3, 4, 7, 4]
> del=[1,3]
=> [1, 3]
> array.delete_atx del
=> [1, 3]
> array
=> [1, 3, 4, 4]

kind regards -botp