Javascript eval on global scope?

Question

Is it possible to use the eval command to execute something with a global scope? For example, this will cause an error:

Answer 1

Use (1, eval)('...').

$ node
> fooMaker = function () { (1, eval)('foo = "bar"'); };
[Function]
> typeof foo
'undefined'
> fooMaker()
undefined
> typeof foo
'string'
> foo
'bar'