title: How to get the keys of an array using javascript?
body: <p>is there any function to get the keys of an array using javascript</p>
  <p>Also i want to reverse and array</p>
  <p>eg:</p>
  <blockquote>
  <p>appz_variable['412cc16e']=&quot;ABXZ&quot;;</p>
  <p>appz_variable['axecr6fd']=&quot;YCSET&quot;;</p>
  </blockquote>
  <p>I want the array indexes or keys in reverse order</p>