The add() function of the Set object accepts a value and adds/appends it to the current Set object.
Syntax
Its Syntax is as follows
setObj.add()
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("Contents of the Set:");
document.write("<br>");
for (let item of setObj) {
document.write(item);
document.write("<br>");
}
</script>
</body>
</html>Output
Contents of the Set: Java JavaFX JavaScript HBase