what is the difference between window.alert and alert??

Answer 1

can you please explain how it is working?

Answer 2

They are strictly the same. Prefixing alert() with window is optional.

Answer 3

is same, just in browser Object's top _proto_ is 'window'

Answer 4

they are the same

Answer 5

alert() is a method
window.alert() here window is a object
But both are work same