Nested function scope variable

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.

Your first and most awful error is at using w3schools for learning other language than html/css. — Frondor
– Frondor, Commented Feb 22, 2016 at 12:25
"I'm use w3schools" ... that's your first mistake, the second one is telling everyone you use it — Jaromanda X
– Jaromanda X, Commented Feb 22, 2016 at 12:26
"//Show nothing" Wrong, shows an error in the console, (in a case the name of name variable is not name, which refers to window.name property.) — Teemu
– Teemu, Commented Feb 22, 2016 at 12:29
fun facts: window.name can only be a string, and it's the only variable except the storages that survives reloading. — dandavis
– dandavis, Commented Feb 22, 2016 at 12:35

NachoDawg · Accepted Answer · 2016-02-22 12:36:44Z

1

Global variables to the rescue

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

function A(){
    B();

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

answered Feb 22, 2016 at 12:36

NachoDawg

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1 Comment

teddym Over a year ago

Thank you man, of course i called the function A(), thought it was implicit. This is perfect.

Niels Steenbeek · Accepted Answer · 2016-02-22 12:34:59Z

0

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);

answered Feb 22, 2016 at 12:34

Niels Steenbeek

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