The WeakSet has() method checks if a WeakSet object contains the specified object element.
Syntax:
weakSetObj.has(value)
Parameters:
value: It represents the element to be searched.
Returns: It returns true if a specified element is found in the WeakSet Object, otherwise returns false.
Example:
<!DOCTYPE html>
<html>
<body>
<script>
var hello = new WeakSet();
var obj={};
hello.add(obj);
document.writeln(hello.has(obj));
hello.delete(obj);
document.writeln(hello.has(obj));
</script>
</body>
</html>
