Javascript function scoping and hoisting

Question

I just read a great article about JavaScript Scoping and Hoisting by Ben Cherry in which he gives the following example:

var a = 1;

function b() {
    a =          


        

Answer 1

function a() { } is a function statement, which creates an a variable local to the b function.
Variables are created when a function is parsed, regardless of whether the var or function statement gets executed.

a = 10 sets this local variable.