Add Rendering ERB as a ruby til.

README.md

@@ -224,6 +224,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 - [Question Mark Operator](ruby/question-mark-operator.md)
 - [Rake Only Lists Tasks With Descriptions](ruby/rake-only-lists-tasks-with-descriptions.md)
 - [Replace The Current Process With An External Command](ruby/replace-the-current-process-with-an-external-command.md)
+- [Rendering ERB](ruby/rendering-erb.rb)
 - [Safe Navigation Operator](ruby/safe-navigation-operator.md)
 - [Set RVM Default Ruby](ruby/set-rvm-default-ruby.md)
 - [Squeeze Out The Extra Space](ruby/squeeze-out-the-extra-space.md)

ruby/rendering-erb.md

@@ -0,0 +1,32 @@
+# Rendering ERB
+
+If you have a string that contains ERB templating, you can quickly generate
+the resulting string with the following code snippet:
+
+```ruby
+require 'erb'
+
+some_template_string = <<-TEXT
+The top
+<% 5.times  do |i| %>
+Item <%= i + 1 %>
+<% end  %>
+The bottom
+TEXT
+
+puts ERB.new(some_template_string).result
+```
+
+This will print the following to stdout:
+
+```
+The top
+Item 1
+Item 2
+Item 3
+Item 4
+Item 5
+The bottom
+```
+
+[source](http://www.stuartellis.eu/articles/erb/)