http://x.rubini.us/ http://x.rubini.us/ I like everything I read there except undefined. I have been using Lua for a while now and having only two falsy values

http://x.rubini.us/ http://x.rubini.us/ I like everything I read there except undefined. I have been using Lua for a while now and having only two falsy values is great. I am not convinced adding a third is a good trade-off.