title: jquery get value of textbox array
body: <p>I have a textbox array in my form. The textbox(s) are dynamically added using javascript function.
  The text box are named as below:</p>
  
  <pre><code>account[0]_number  account[0]_balance
  account[1]_number  account[1]_balance
  </code></pre>
  
  <p>How can I get the values of these textboxes using jquery?</p>
  
  <p>Below is how I tried, but it gives error:</p>
  
  <pre><code>if($('#account[' + iteration + ']_balance').val().length==0)
  </code></pre>