Example,
 <td id="example">
   Something is inside here.
   <button id="paymentBtn">pay</button>
 </td>
What i want to do is, "only emtpy" before payment button and insert a new thing like this,
<td id="example">
   Deleted old one, and inserted new one.
   <button id="paymentBtn">pay</button>
 </td>
I know i can use
$("#paymentBtn").before("inserted new one");
but how can i empty?
If i empty example. it blows everything and
 $("#paymentBtn").before().empty(); 
This doesn't work :(
 
     
     
    