Question

function f() {
    var b = "b";
    return function() {
        alert(b);
        return b;
    };
}
var a = function f();
    alert(a);
​

I try to run this code but I have error which I don’t understand.

Error:
Problem at line 8 character 21: Expected '{' and instead saw ';'.
var a = function f();

Problem at line 8 character 21: Unnecessary semicolon.
var a = function f();

Problem at line 8 character 22: Missing semicolon.
var a = function f();

Implied global: alert 4,9

what wrong in this code I want to alert the the privete var from the global scope.
what I should change ?
Many thx.
​

Answer 1

 var a = function f();

That doesn’t make any sense.
If you’re trying to call the function, just write f().