嵌套对象是否被认为是好的做法？

Question

Is nesting objects and calling them such as var1.var2.func1(); generally ok for performance and coding practice? There are alternatives but is this method acceptable?

function foo(name) {
  this.bar = {
      xyz: function() {
          console.log(name)
      }
  }
}

var abc = new foo("John");

abc.bar.xyz();

Answer 1

One problem that I can see with the code above is that it violates the Law of Demeter or Principle of least knowledge.

You can read more about this design guideline here: https://en.wikipedia.org/wiki/Law_of_Demeter