Another example of default binding of "this" keyword
<!DOCTYPE html>
<html>
<head>
<script>
function foo(){
var bar = "bar1";
baz();//doesn't matter where the function is called for. When undecorated or
//iife it will abide by default binding rule
}
function baz(){
console.log(this.bar);
}
var bar = "bar2";
foo();//bar2;
</script>
</head>
<body>
<!-- page content -->
</body>
</html>