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up vote 2 down vote favorite

I have following object:

var myObject = {
    attributes: { name: "dev.pus", age: 29 },
    someInjectedObject: {
        name: "someComponent",
        action: function() {
            // do something
            return this.this.attributes.name; // this surely won't work :(
        }
    }
};

As you see I want to get myObject.attributes.name from an nested part of the object without having to observe the value.

How do I do this? How do I define a reference?

EDIT: A simple myObject.attributes isn't enough because myObject changes or better gets assigned to a new variable.

share|improve this question
    
possible duplicate of Emulate super in javascript –  Kay Jul 15 '12 at 15:41

2 Answers 2

up vote 2 down vote accepted

Create a closure around your object:

var myObject = (function() {
  var result = {
    attributes: { name: "dev.pus", age: 29 },
    someInjectedObject: {
      name: "someComponent",
      action: function() {
        // do something
        return result.attributes.name;
      }
    };
  };
  return result;
})();
share|improve this answer
    
I have updated the answer –  dev.pus Jul 15 '12 at 13:34
    
I've updated my answer. You shouldn't downvote answers if you change your question. –  Dmitry Osinovskiy Jul 15 '12 at 13:39
    
Hmm, this would be a possible solution but hard to integrate (I would have to rewright all my Backbone.Model implementations. Maybe there will come another answer. PS: I didn't downvote... –  dev.pus Jul 15 '12 at 13:41
1  
@dev.pus Instead of creating new closure you can simply create a copy of myObject variable that wouldn't change. This is ugly, but would work. P.S. Sorry for suspecting you :) –  Dmitry Osinovskiy Jul 15 '12 at 13:51
    
Hmm, I will wait a bit with the final answer mark but it seems that I will have to refactor a lot using closures :) –  dev.pus Jul 15 '12 at 13:57
up vote 1 down vote

You can do refer to myObject directly like this:

var myObject = {
    attributes: { name: "dev.pus", age: 29 },
    someInjectedObject: {
        name: "someComponent",
        action: function() {
            // do something
            return myObject.attributes.name; // this surely will work :(
        }
    }
};

alert(myObject.someInjectedObject.action());
​

DEMO

​

share|improve this answer
    
He says in his question that As you see I want to get myObject.attributes.name from an nested part of the object without having to observe the value. I guess he wouldn't even ask this question if this solution was acceptable –  Esailija Jul 15 '12 at 13:31
    
I have updated the answer –  dev.pus Jul 15 '12 at 13:34

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