But, if your boss forgot to start the change tracking, then? Well, not to worry, word can do merging of two different branches like a version control. Steps:

1. Very important! Make sure you are having extra copy (backup) of both the documents (your copy and boss’s copy). Just in case we create mess in the process, you don’t loose your valuable information in these documents.
2. After making sure both documents (e.g. “My Copy” and “Boss’s Copy”) are closed, open “Boss’s Copy” document in MS Word.
3. Invoke “Save as“ operation and try and save it over “My Copy” of the document. (Notice already open document name and Save as name in the image)
4. Word should prompt you for different available option, having one of them to be “Merge changes into existing files” (for example, as  depicted in image), select it and continue with “Save as” operation.

In the result of above, “My Copy” document will be updated as if Boss have changed the document while having “Change Track” on.

I had created a javascript that was similar as below:

   1:  function Type1(){

   2:      _type = "type1";

   3:      this.show = function() { alert(_type); }

   4:  }

   5:  function Type2(){

   6:      _type = "type2";

   7:      this.show = function() { alert(_type); }

   8:  }

   9:  o1 = new Type1();

  10:  o2 = new Type2();

  11:  o1.show();

  12:  o2.show();

And me being ignorant about what I have written, was expecting to see two alerts once with “type1” and another with “type2”.

Case that I had was more complex , hence I took more time to understand the problem, and then note that I haven’t have “var”! The code should be as:

   1:  function Type1(){

   2:      var _type = "type1";

   3:      this.show = function() { alert(_type); }

   4:  }

   5:  function Type2(){

   6:      var _type = "type2";

   7:      this.show = function() { alert(_type); }

   8:  }

   9:  o1 = new Type1();

  10:  o2 = new Type2();

  11:  o1.show();

  12:  o2.show();

Note and Remember, “var” defines the scope of variable as local!