How to render a string as an erb file?

Question

How to edit a line as erb file rendering.

For example, I want this line:

"Hello <%= 'World'%>" 

To be:

 "Hello World" 

How can i do this?

Answer 1

If I understand you correctly, this will be useful:

 require 'erb' str = "Hello <%= 'World'%>" result = ERB.new(str).result # => "Hello World" 

UPDATE

If you want to use variables:

 require 'erb' w = "World" str = "Hello <%= w %>" result = ERB.new(str).result(binding) # => "Hello World"