Do we need a different editor separately for Ruby??

Question

Thank you.

Answer 1

From the Code Playground? Nope.

You can still use notepad++. You still need the ruby installer, to make the code in your pc work, or you can use the online one:

https://code.sololearn.com/#rb

Answer 2

Sublime is good for all programming languages. Or if you're geeky Vim, or Emacs. These editors handle almost all languages.
However you may want to use an IDE for various purposes, including debugging, automatic namespacing, etc. Means IDE gives you added functionality.
However if you're just trying out some piece of code, IDE is not necessary.