嵌套函数作用域变量

Question

I'm using this doc : http://www.w3schools.com/js/js_scope.asp as an exemple.

I'm trying to get var name = snoopdog, outside the main function.

 function A(){ function B(){ name = "snoopdog"; } //Show snoopdog alert(name); } //Show nothing alert(name); 

Ok I tried to put the nested function inside a variable, still not working.

Answer 1

Global variables to the rescue

var name;
A();
alert(name) //shows snoopdog

function A(){
    B();

      function B(){
      name = "snoopdog";  
    }
    //Show snoopdog
    alert(name);
}

Answer 2

Using a var outside the main function, means you want to put it on the 'window' scope.

function A() {
    function B() {
        window.name = "snoopdog";  
    }
    //Show snoopdog
    alert(window.name);
}
//Show nothing
alert(window.name);