How to Create a method inside A method in javascript ?

Question

I have a Javascript class "Command" , in this class I have two methods/functions I) contructor II) show. I want to create a method inside show ,
"previous" that returns a value x.
I want to access this like....
var cmd = new Command;
cmd.show().previous() , how can I do that ?

Answer 1

this is how to do it

class cmd {

show() {
return {
previous: () => {
...
};
}
}

};

Answer 2

Something like this?

function func() {
alert("hello")
func.display = function() {
alert("world")
};
}
func()
func.display()

Answer 3

NimaPoshtiban thank you so much for your help

Answer 4

rkk thanks you

Answer 5

rkk I want to create a function inside fun.display