title: what mean .length property in an array variable
body: <p>Can I ask what mean .length property in the array variable? I look through many article and many of them stated that .length return the number of string. So can anyone give me an answer?
  Below is the code:</p>
  
  <pre><code>&lt;script type="text/javascript"&gt;
  var mycars = new Array();
  mycars[0] = "Saab";
  mycars[1] = "Volvo";
  mycars[2] = "BMW";
  
  for (i=0;i&lt;mycars.length;i++)
  {
  document.write(mycars[i] + "&lt;br /&gt;");
  }
  &lt;/script&gt;
  </code></pre>