The Javascript handler getOwnPropertyDescriptor() method traps for Object.getOwnPropertyDescriptor().
Syntax:
getOwnPropertyDescriptor: function(target, property)
Parameters:
target: It represents the target object.
property: It represents the property whose description should be retrieved.
Return:
An object or undefined.
Example:
<!DOCTYPE html>
<html>
<body>
<script>
const handler = new Proxy({}, {
getOwnPropertyDescriptor: function(a,b) {
document.writeln('HELLO WORLD!');
return Object.getOwnPropertyDescriptor(a,b);
}});
console.dir(Object.getOwnPropertyDescriptor(handler));
</script>
</body>
</html>