CODEWITHSUNDEEP
javascript
Johan
Johan

Reputation: 35194

Referencing "private methods" in a closure

var Foo = (function () {

    var foo = function() { };

    var privateMethod = function(){ };

    foo.prototype = {
        init: function() { 
            console.log(this.privateMethod); //undefined
        }
    };

    return foo;

})();

I know that I can access privateMethod directly without using the this pointer. But since I come from the c# world, I would like to use it for readability purposes.

Is there any way to reference my "private methods" using a pointer?

Upvotes: 0

Views: 60

Answers (2)

bfavaretto
bfavaretto

Reputation: 71908

You can't. You can only use this to refer to "public" methods. If you really want to use a something.method notation, you could use:

var Foo = (function () {

    var foo = function() { };

    var private = {
       privateMethod : function(){ };
    }

    foo.prototype = {
        init: function() { 
            console.log(private.privateMethod); 
        }
    };

    return foo;

})();

Upvotes: 2

Ted Hopp
Ted Hopp

Reputation: 234795

privateMethod is not specific to each instance of foo. Just reference it without the this. qualifier—although you probably want to log the results of a function call, not the function itself:

console.log(privateMethod());

Upvotes: 2

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