Calling function inside a variable

Question

I am using a plugin JS and need to call a function in it.

It is having functions inside a variable like,

var win = window;
var Page = function(pageOptions, callback) {
 function abc(){
 --------
 }
 function xyz(){
 ------
 }
};
win.Sales = {
 Page: Page
};

Now, I need to call a function abc(). How can I call it. Already tried with win.Sales.page.abc();.

Please help me out on this. Thanks in advance.

• Anantha Sharma: just say win.Sales.Page it will call the function. since Page contains the reference to a function.
• Max: @Sharma: I need to call abc() in it. Anyway I did what u suggested. Didn't work.

Answer 1

You cannot do that with your configuration because the functions are local or private.

You should make them accessible globally like:

var Page = function(...) {
 ...
};
Page.abc = function() {
 ...
};

That way, abc is a property of Page, and you can then access it like Page.abc and execute it like Page.abc(). Functions are basically also objects so they can have properties too.

• Max: Its a plugin for drawing some charts. I cannot change it and also I see that Page is getting declared in win.Sales.
• pimvdb: @Max: Then you're out of luck I think, because the idea of those private variables/functions is that you cannot access them outside.

Answer 2

You cant call function abc since it is declared as a private member of the function referenced by variable Page.

If you want to call the function You have to make it as a property of the variable Page.

var Page = function(){
 .........
 .........
 .........
}
Page.abc = function(){
}

But there is another problem of variable scoping like if there is another variable x defined in function Page and used inside function abc, it will not work.

Anyway since you've said it is a js plugin I do not think it will be possible for you to change the function Page. So the answer will be No you cannot do that.