Using Ruby Symbols

Question

First time I tried learning Ruby was 2 years ago, now I have started again. The reason I stopped was because I could not understand the Symbol class. And now I am at the sam

Answer 1

After ruby version 2.2 symbol GC was removed, so now mortal symbols i.e when we convert string to symbol ("mortal".to_sym) gets cleaned up from memory.

check this out:

require 'objspace'
ObjectSpace.count_symbols
{
  :mortal_dynamic_symbol=>3,
  :immortal_dynamic_symbol=>5,
  :immortal_static_symbol=>3663,
  :immortal_symbol=>3668
}

source: https://www.rubyguides.com/2018/02/ruby-symbols/