Question

if i have :

var obj= {
    a:"something", 
    b:{ 
        a:function (){
        // Can I access obj properties through the this keyword here
        }
    }
};

Can I access properties of obj through the this keyword in the obj.b.a function?

Answer 1

Short answer: No.

Long answer: There could be many properties on many objects pointing to the object. Which one would be the parent? Also, read here how the this keyword really works: It only points to the obj.b object when your function is called with obj.b.a().

However, you can still use the obj variable as a reference. In this answer I have discussed the differences to this.