Does localStorage.clear(); clear ALL from PC?

Question

If I call the following:

window.onbeforeunload = function() {
  localStorage.clear();
};

Does this clear all local storage from a user machine or just what my site has set?

Answer 1

From the spec for clear :

The clear() method must atomically cause the list associated with the object to be emptied of all key/value pairs, if there are any. If there are none, then the method must do nothing.

In the above, "the object" in this context would be localStorage . What is localStorage ? From the spec :

The localStorage object provides a Storage object for an origin.

So, it will just clear out the data for your origin, or domain.