ThisFirstExample.js

function foo(){
	console.log(this.bar);
}

var bar = "bar1";


var o2 = { 
	bar:"bar2",
	foo:foo
};

var o3 = { 
	bar:"bar3",
	foo:foo
};

foo(); //default binding - If in strict mode, default will make the call result undefined. If not, it will print bar1. 
		//https://stackoverflow.com/a/19850326/2309841

o2.foo(); 
o3.foo();