title: Javascript combine arrays or strings
body: <p>I have the following dynamically generated strings:</p>
  
  <pre><code>var stringA = ["a1", "a2", "a3" ... 'a400' ... 'a600']; // length 600
  var stringB = ["b1", "b2", "b3" ... 'b400']; // length 400
  </code></pre>
  
  <p>How can I get an Array or string of both combined like this:</p>
  
  <pre><code>var myString = ["a1b1", "a2b2", "a3b3" ... "a400b400", "a401" ... "a600"]
  </code></pre>