title: Smalltalk - Is it possible to add a string to a String instance via a method?
body: <p>Smalltalk - Is it possible to add a string to a String instance via a method?</p>
  
  <p>Essentially I'd like something along the lines of:</p>
  
  <pre><code>renderThisOn: aString
  
  aString append: 'whatever text I want'
  </code></pre>
  
  <p>Essentially I'd like a String instance (ByteString, etc) to behave like the "html" object in Seaside. I pass it on as an argument to multiple methods, each adding some information to it.</p>