Access function inside function inside object

Question

I know that sounds weird, but bear with me.

I have an object like this:

Functions = {
    function1: function() {
        function2: function() {
            alert('bam');
        }
    }
}

How can I fire function2? I tried Functions.function1.function2and Functions.function1().function2() but none works. Am I doing something wrong?

This isn't valid JavaScript syntax. `Functions` is an object, so you can do `function1:`. Inside that function, you cannot do `function2:`. — gen_Eric, Oct 13 '14 at 18:23
youll need to change the function two to be return now that I have put it in jsbin. — Mike Cheel, Oct 13 '14 at 18:24
@RocketHazmat, actually, it should be valid in that it's the `function2:` label of an anonymous function. — zzzzBov, Oct 13 '14 at 18:24
@zzzzBov: Right, but the function definition is interpreted as function declaration and throwing an error. — Felix Kling, Oct 13 '14 at 18:25
@FelixKling, you're right, my bad. I just double checked myself after leaving the comment and it's missing the name. — zzzzBov, Oct 13 '14 at 18:25
@zzzzBov: Still, you are right, `function2:` itself is valid. — Felix Kling, Oct 13 '14 at 18:26
I think [my answer to another question is relevant, if not quite a duplicate](http://stackoverflow.com/a/7295712/497418). — zzzzBov, Oct 13 '14 at 18:28

score 1 · Answer 1 · answered Oct 13 '14 at 18:34

Here are two reworkings:

Keeping the function2 label

Functions = {
    function1: function() {
        function2: 
          (function() {
            alert('bam');
          })();      
    }
};

Functions.function1(); // You still can't access the label function2 however

Removing the function2 label (switch for a return

Functions = {
    function1: function() {
        return function() {
            alert('bam');
        };
    }
};

Functions.function1()();

Bottom line is that the code doesn't work as it stand because you cannot treat a label as if it was a property of a function.

The closest you could get (as far as I can tell) to calling function2 off of function1 is (without a return statement):

Functions = {
    function1: function() {
    }
};

Functions.function1.function2 = function() {
  alert("bam");
};

Functions.function1.function2();

Going with a `Removing the function2 label (switch for a return` example, how I can pass arguments to `function1`? `Functions.function1(param)()` doesn't work. — Tomek Buszewski, Oct 13 '14 at 20:07
Do you mean like pass 'bam' to function1 and have it alert from inside the deeper nested function? — Mike Cheel, Oct 13 '14 at 20:09
Something like `function1: function(elzar){ return function() { alert(elzar); }; }` — Tomek Buszewski, Oct 13 '14 at 20:12

score 0 · Answer 2 · answered Oct 13 '14 at 18:31

0

 var test_func = {
        test1:function(){
           console.log("test1")
           return {
               test2:function(){
                  console.log("test2")
               }
           }
        }
    }
      test_func.test1().test2()

answered Oct 13 '14 at 18:31

David Holmes

41
2

Access function inside function inside object

2 Answers2