Explain sub-classes and inheritance in ES6?

1.	Explain sub-classes and inheritance in ES6?
Answer» In JavaScript, you may have seen the function name with a leading plus sign: +function() { }(); The + is used for forcing the parse to consider WHATEVER FOLLOWS the leading plus as expression This is how you can use + perfectly in a function invoked IMMEDIATELY, for example, +function() { ALERT("Demo!"); }(); You can also display it as: (function() { alert("Demo!"); })(); You can also use it like this (Closing parentheses at the end): (function() { alert("Demo!"); }());

Answer»

In JavaScript, you may have seen the function name with a leading plus sign:

+function() { }();

The + is used for forcing the parse to consider WHATEVER FOLLOWS the leading plus as expression

This is how you can use + perfectly in a function invoked IMMEDIATELY, for example,

+function() { ALERT("Demo!"); }();

You can also display it as:

(function() { alert("Demo!"); })();

You can also use it like this (Closing parentheses at the end):

(function() { alert("Demo!"); }());

Discussion