Can't find the ERB gem

Question

I know how to use erb, and have done so on rails and in standalone ruby apps.. I don't know where it came from, as I have never installed it but it's there. I used rbenv on my mac.

I installed ruby on a windows 8 computer using the rails installer and can't seem to access erb.

how do you install erb??? (Or is there something I'm missing)

Answer 1

ERB module comes with standard libaray in Ruby. You just need to require it.

require 'erb'

temp = "<%= var %>"

erb = ERB.new(temp)
var = "hi" 
erb.result(binding) # => "hi"