book_example.js

// Section: "Prototype-based OO programming", 2nd example

var bFunc = function() { return this }
var b = { name: "b", fun: bFunc }

b.fun() 
// => Object {name: "b", fun: function}

what_you_probably_meant.js

var obj = { name: "I'm an object", myself: function() { return this } }
obj.myself()
// => Object {name: "I'm an object", myself: function}

pseudoSelf = obj.myself
pseudoSelf()
// => Window {top: Window, window: Window, location: Location, external: Object, chrome: Object…}