Ch 4 Functions First is a little confusing

[getify]

Ch 4 Functions First is a little confusing

[getify]

I think the proper way to think about it is: functions are hoisted first and then variables, but a function execution (as with any other sort of statement) always happens after both have been declared, which means that a function referencing a variable will find it by the time the function is executed.

[davidbkemp]

OK, I guess it is a fairly minor distinction anyway. Keep up the great work!

[getify]

Thanks! :)

[muradsofiyev]

function foo() {
    console.log( foo );
}
var foo;


foo()

But what is happened in there? If functions are hoisted first and then variables we can't call foo like function but we can

[getify]

var foo; does not do the same thing as var foo = undefined;. The former creates a variable that is auto-initialized at the top of the scope. The latter has as assigment expression that happens during runtime at that point in the code.