ScopeSecondExample.js

var outerFunction  = function(){
 
   if(true){
      var x = 5;
      console.log(y); // ReferenceError: y not defined
   }
 
   var innerFunction = function() {
 
      if(true){
         var y = 7;
         console.log(x); // x will still be known prints 5
      }
 
      if(true){
         console.log(y); // prints 7
       }
   }
   return innerFunction;
}