How to reference objects in an array created with .select method?

Question

As I understand it, running a .select method on an array generates a new array. My question is how to reference that new array?

So when I have something like this:

Num = [3, 5, 7, 9, 11, 13, 15, 17, 19]
x = rand(1..10)
Num.select { |i| i > x}

I want to reference specific objects in the new array generated by this .select.

For example, I'd like to say

puts new_array[0]

Or something similar. But since the new array doesn't have a "name," I don't know how to call the objects in it.

Thanks for any help!

new_array = Num.select {|i| i > x} then new_array[0] etc. — Sagar Pandya
– Sagar Pandya, Commented Aug 27, 2016 at 22:48
So obvious. Thank you. I had tried new_array = [] new_array << Num.select { |i| i > x} but that added an array within an array. This is so simple. Thanks again. — old_dog_new_tricks
– old_dog_new_tricks, Commented Aug 27, 2016 at 22:58

kcdragon · Accepted Answer · 2016-08-27 22:56:49Z

4

You assign a local variable to the result of the select.

num = [3, 5, 7, 9, 11, 13, 15, 17, 19]
x = rand(1..10)
new_array = num.select { |i| i > x}
puts new_array[0]

I also changed your variable Num to num. Usually, only classes are named with the first letter capitalized and the rest lowercase.

answered Aug 27, 2016 at 22:56

kcdragon

1,7431 gold badge14 silver badges24 bronze badges

Sign up to request clarification or add additional context in comments.

1 Answer 1