Does Ruby have a “dir” method, similar to Python?

Question

I'm coming to Ruby from Python, and I'm wondering if Ruby has some equivalent of dir() in Python that I can use within the IRB. I was looking at this SO thread linked below, where it appears to not be the case, but it's a 6 year old post so I was trying to find out if anything had changed since then.

Ruby Equivalent of Python dir?

objects.methods.sort is nice, but I want to see things like instance/class variables on an object as well (really everything publicly available in the namespace), not just methods.

Answer 1

Ruby can tell you the methods: obj.methods .

There's also: #public_methods, #instance_methods, #private_methods, etc.

Ruby can tell you the instance variables #instance_variables . Ruby can't tell you the documentation; there's no docstring like there is in Python. There are some enhancements to irb available that give an ri command from within irb.

Answer 2

有一种非常流行的gem pry ，它具有称为ls方法，可以为您提供一些我相信的东西，类似于Python中的dir 。