RuBy. Why the code behaves this way?

Question

Need explanation RUBY
https://code.sololearn.com/cXg32HZbZ5Wr/?ref=app

Answer 1

Can you please put your code in playground and link it here? Thanks!

Answer 2

I am not sure what you want to achieve, but i have modified your code slightly:

arr=[1,-2,3]
arr.each{|x| puts x=-x} # this does change the sign of the numbers

arr=[1,-2,3]
arr.each{|x| puts x-=1} # this does subtract 1 from each element in arr

Answer 3

Thank you Lothar
I'm not trying to achieve anything per se; just to understand how x=-x and x=x or just x will puts the same result.
It was the question in one of the challenges. 😁

Answer 4

Done, see above...thank you