javascript - Scope on Object not Behaving as Expected -


I'm trying to clean up a long-standing bad habit in coding: widgets writing in the global scope.

I have created a large, mostly self-contained script for a news roll on a webpage and it is completely amazed that how well I filled the whole thing in the function ... a very good thing is.

To ensure that I was not cheated, I had written the following code to ensure that my scroll was correct: 

  var story_count = "This one Number is not "; Console.log (story_count); Touch_roll = function () {this.story_count = 0; } Console.log (story_count); Touch_roll (); Console.log (story_count);   
 There is a complete hope of giving the following feedback in the console  
  This is not a number. It is not a number. It is not a number  < / Pre> 
 I think the output was really amazing, in fact,  it :  
  this is not a number. It is not a number 0 < / Code>  
 what is  this  is not what I think? Research has not really helped, but I have been burned a bit, so it is entirely possible that I am reading it all wrong. If not, then how do I keep all my names completely within the scope of that function, so that the site does not mess with existing bits?  
 
 According to the answer given below, correct code here:  
  var story_count = "this is not a number"; Console.log (story_count); Var touch_roll = new function () {this.story_count = 0; Console.log (story_count); } Console.log (story_count); By declaring   
  touch_roll  as  var  and adding the function as  new  is. The object in the form of run-time (so we can remove the call at  touch_roll ()  below.)  
 The correct output is as follows:  
  This is not a number. 0 This is not a number  
 
 
 
 Because you ' Touch_roll  with  new ,  this  is  window  object (which is the global variable in my browser environment).  
 If you want to use the  new , you will get:  
  this is not a number. This is not a number, it is not Additionally, you are declaring  touch_roll  as an inherent global variable, or use it either, or use a  var < / Code> add.

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