Access overridden global variable inside a function

问题

I want to access global variable 'x' when it is over-ridden by same named variable inside a function.

function outer() {
   var x = 10;
   function overRideX() {
      var x = "Updated";
      console.log(x);
   };

  overRideX();
}

outer();

Jsbin : Fiddle to Test

I don't want to rename the inner 'x' variable to something else. Is this possible ?

Edit: Edited question after abeisgreat answer.

回答1:

You can use window.x to reference the globally scoped variable.

var x = 10;
function overRideX() {
  var x = "Updated";
  console.log(x);
  console.log(window.x);
};

overRideX();

This code logs "Updated" then 10.

回答2:

The global scope of your web page is window. Every variable defined in the global scope can thus be accessed through the window object.

var x = 10;
function overRideX() {
    var x = "Updated";
    console.log(x + ' ' + window.x);
}();

来源：https://stackoverflow.com/questions/15826751/access-overridden-global-variable-inside-a-function