Javascript defining functions

Question

I've been learning Javascript with Khan Academy. I'm looking at : http://www.khanacademy.org/cs/speed-circles/964929070

there is a line that reads "var draw = function() {...}" is he defining a function called draw? Or is the variable draw calling some function (which I don't see defined)?

Thanks!

Answer 1

Yes, a function expression is being assigned to the variable named draw. You can even call it:

var draw = function() {
    console.log('xyz');
};

draw(); // 'xyz'