Prototype remove() Method

Syntax:

element.remove();

Return Value:

Returns removed HTML element.

Example:

<html>
<head>
<title>Prototype examples</title>
<script type="text/javascript" 
   src="/javascript/prototype.js">
</script>
<script>

function showResult(){
   var str = $('mutsu').remove();
   alert("Value of str : " + str.innerHTML );

   var str = $('ida-red').remove();
   alert("Value of str : " + str.innerHTML );

}

</script>
</head>

<body>

  <p>Click the button to see the result.</p>

  <ul>
  <li id="golden-delicious">Golden Delicious</li>
  <li id="mutsu">Mutsu</li>
  <li id="mcintosh">McIntosh</li>
  <li id="ida-red">Ida Red</li>
  </ul>
  
  <input type="button" value="Show Result" onclick="showResult();"/>

</body>
</html>

To understand it in better way you can Try it yourself.