Why doesn't this work if in Ruby everything is an Object?

Question

Considering that in the Ruby programming language everything is said to be an Object, I safely assumed that passing arguments to methods are done by reference. Howe

Answer 1

Ruby passes values around to functions, and these values are references to objects. In your function you are reassigning s to another value, in this case a reference to 1. It does not modify the original object.

Your method isn't changing the object passed in, you're changing what s refers to.