Javascript DOM- Element Sizes

The size property of the Set object returns a number representing the number of elements in the current set object using javascript size.

Syntax:

Obj.size();

Example:

<html>
 <head>
  <title>JavaScript Example</title>
 </head>
 <body>
  <script type="text/javascript">
   const setObj = new Set();
   setObj.add('Java');
   setObj.add('JavaFX');
   setObj.add('JavaScript');
   setObj.add('HBase');         
   document.write("Size of the Set object: "+setObj.size);         
  </script>
 </body>
</html>

OUTPUT:

Size of the Set object: 4