How to use the debugger with ruby 2.0?

How to use the debugger with ruby 2.0?

References

Reference NO 1

http://stackoverflow.com/questions/15200165/how-to-use-the-debugger-with-ruby-2-0

Reference NO 2

http://www.ruby-doc.org/stdlib-2.0/libdoc/debug/rdoc/DEBUGGER__.html

Reference NO 3

https://github.com/cldwalker/debugger

Reference NO 4

https://github.com/cldwalker/debugger/issues/66

Reference NO 5

https://github.com/cldwalker/debugger/pull/68

Reference NO 6

https://rubygems.org/gems/byebug

Reference NO 7

https://www.ruby-forum.com/topic/4411331

Reference NO 8

http://blog.drewsheneman.com/blog/2013/06/03/debugging-in-ruby-2-dot-0