"Usual" functions vs function variables in JavaScript

Question

Is there any difference between

function MyFunc() {
    // code...
}

and

var MyFunc = function() {
    // code...
};

in JavaScript?

Answer 1

Defining it as a variable:
You can pass a function to another function.
You can redefine a function reasigning that variable.
You can return a function from a function.
...

Answer 2

This article might answer your question : JavaScript function declaration ambiguity

(look at the comments, too, which might get some useful informations too)

Answer 3

Yes

Answer 4

There is no difference superficially, so you can use both format in your code.

To js interpreter it is different though.

First one is a named funciton.

Second one is an anonymous function that gets assigned to a variable.

Also, while debugging, you won't get a name of for the second function in stack trace.

Answer 5

I know that a difference between them is that named functions works everywhere regardless you declare them, functions in variables don't.

a();//works   
function a(){..}

works

a();//error
var a=function(){..}

doesn't work but if you call it after the declaration it works

var a=function(){..}
a();//works