Variable Scope in JavaScript

var obj = {

    Variable: 1, 

    Name: function() {
      Variable  += 1;
    }

   return 开发者_开发技巧this.Variable
}

var obj = {

    Name: function() {
      var Variable = 1;
      Variable  += 1;
    }

   return Variable
}

1. Now what is the difference between these two?
2. Does these two give different outputs.

---

1) The difference is that the definition of Variable variable is in different location.

2) No, they have the same output: output nothing and give you error.

=== Update for your comment (Why this is invalid code?) ===

Because you cannot return inside an object literal.

ie.

{ return "something" }

is simply incorrect.

---

Objects don't return. That's something functions do. You're lacking a Closure.

---

Your script has a lot of nonsense;

in the first case, you declare a variable "Variable" member of the object.

 var obj = {

        Variable: 1,

    }

and you use a variable "Variable" registered in global:

var obj = { 
    Name: function() {
      Variable  += 1;
    }
}

You cannot use return in your object.

var obj = {

   return Variable
}

---

Don't know what you want...

function wrapperFunction()
{
    var Obj = {
        variable: 1,
        ....
    };
    return Obj ;
}

You can try also wrapping the entire object inside of a function. Then use the function to return a new instance each time the wrapping function is called.