Hit tab after emoji in irb
➜ rvm use ruby-2.7.0-preview1
Using /Users/ccscanf/.rvm/gems/ruby-2.7.0-preview1
~ ➜ irb
2.7.0-preview1 :001 > “Hello World 🌍” Traceback (most recent call last): 30: from /Users/ccscanf/.rvm/rubies/ruby-2.7.0-preview1/bin/irb:23:in `<main>'
29: from /Users/ccscanf/.rvm/rubies/ruby-2.7.0-preview1/bin/irb:23:in `load' 28: from /Users/ccscanf/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/gems/2.7.0/gems/irb-1.0.
0/exe/irb:11:in `<top (required)>' 27: from /Users/ccscanf/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/irb.rb:388:in `sta
rt' 26: from /Users/ccscanf/.rvm/rubies/ruby-2.7.0-preview1/lib/ruby/2.7.0/irb.rb:430:in `run