title: Split an array of strings using a separator
body: <p>In JavaScript, is it possible to split each string in a multidimensional array of strings using a separator? I'm trying to split a multidimensional array of strings using a string separator, but I don't yet know how to iterate over a multidimensional array without using multiple for-loops.</p>
  
  <pre><code>var theArray = [["Split,each"],["string, in"],["this, array"]];
  </code></pre>
  
  <p>As far as I know, it isn't possible to apply the <code>string.split(",")</code> method to a multidimensional array. I'll need to find a workaround, since this code isn't valid:</p>
  
  <pre><code>alert([["Split,each"],["string, in"],["this","array"]].split(","));
  </code></pre>