title: Add character to string to get another string?
body: <p>I want to add a character to a string, and get another string with the character added as a result.</p>
  
  <p>This doesn't work:</p>
  
  <pre><code>(cons \a "abc")
  </code></pre>
  
  <p>Possible solutions, in order of preference:</p>
  
  <ol>
  <li>Clojure core function</li>
  <li>Clojure library function</li>
  <li>Clojure user-defined (me!) function  (such as <code>(apply str (cons \a "abc"))</code>)</li>
  <li>java.lang.String methods</li>
  </ol>
  
  <p>Is there any <strong>category 1</strong> solution before I roll-my-own?</p>
  
  <hr>
  
  <p>Edit:  this was a pretty dumb question.  <strong>:(</strong></p>