Re: Showing part of an array

Ruby
1

You can use this function:

class Array
def show_part
if self.length>2
p self[0…2].join(’, ‘)+’, …’
else
p self.join(’, ')
end
end
end

… anbd apply it like this :

colors = [“black”,“white”,“red”,“yellow”,“green”]
colors.show_part
two_colors = [“black”,“white”]
two_colors.show_part
three_colors = [“black”,“white”,‘red’]
three_colors.show_part

Best regards,

Axel

2

Thanks, Axel

How about if you’re using it on an array consisting of both an id and a
name so that

colors[0…2].collect{ |color| color.name }.join(’, ')

Cheers,
Rosina