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Pastable version of Given a hash of variables, render an ERB template

<pre class='prettyprint' language='ruby'>require 'erb' # GOAL: render the template with the following vars vars = { :first =&gt; 'Mislav', 'last' =&gt; 'Marohnic' } template = 'Name: &lt;%= first %&gt; &lt;%= last %&gt;' # create anonymous module which binding we will use m = Module.new do # I want the singleton class, thank you class &lt;&lt; self public :binding def meta class &lt;&lt; self; self; end end end class &lt;&lt; meta public :define_method end # define singleton method for each var vars.each do |name, value| meta.define_method(name) { value } end end puts ERB.new(template).result(m.binding) #=&gt; &quot;Name: Mislav Marohnic&quot;</pre> <a href="http://www.refactormycode.com/codes/281-given-a-hash-of-variables-render-an-erb-template" style="color:#fff" title="As seen on RefactorMyCode.com"><img alt="Small_logo" src="http://www.refactormycode.com/images/small_logo.gif" style="border:0" /></a>