Refer to anonymous array within each/block

Question

I have the following in Ruby:

arr = [1, 2]
arr.each{|n| arr << n unless n > 2_000}

Is there any way to reference my array from within the block if I define it anonymously?

[1,2].each{|n| self << n unless n > 2_000}

Or something? I'm guessing not because I can't think of a way that I would reference it.

Answer 1

here are similar (although outdated) questions:

Call to iterating object from iterator

How to get a reference to a 'dynamic' object call?

also you could create a one-liner this way:

(arr = [1, 2]).each{|n| arr << n unless n > 2_000}

Answer 2

Changing the array when you are iterating it may cause infinite loop.

You could do below:

arr = [1, 2]
arr += arr.select { |n| n <= 2000 }

Answer 3

[].tap { |e| e.concat([1,2,20000].select { |n| n <= 2000 })