knockout.js - Observing Properties of a User Defined Javascript Object -

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I know that we can not see the properties of an object just by looking at an object. But I want to know that my understanding is correct.

Can we do something like that? 

  function person (name, age) {this.name = name; This.age = age; } $ (Function () {var vm = (function () {var person = ko.observable (new person ("ABC", 23)); Return {person: person};}) (); ko.applyBindings (vm );});   
 This is not working so we can not guess. I do not even know where this character comes from 'C'.   
 
 
 You are not far away, when you refer to it in your markup, your  person  Observation must be opened:  
  
  & lt; Input data-bind = "value: person () .name" /> & Lt; Input Data-Bind = "Value: Person (). Age" />   
  Edit from a comment   
  
 You can see the properties of  person  So that they can track such changes:  
  function person (name, age) {this.name = ko.observable (name); This.age = ko.observable (age); }

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