top1
settop
settopbox
parent1
grandparent
grandparents
topFoo
topFoo.window
topFoo.window != topFoo
parentFoo
parentFoo.window
parentFoo.window != parentFoo
parent()
foo.parent()
top()
foo.top()
foo("parent")
foo("top")
const parent = () => { bar: 'bar' }
parent.bar