The clear() method of the Storage interface clears all keys stored in a given Storage object.
clear()None.
None (undefined).
The following function creates three data entries in local storage, and then deletes them by using clear().
function populateStorage() {
localStorage.setItem("bgcolor", "red");
localStorage.setItem("font", "Helvetica");
localStorage.setItem("image", "miGato.png");
localStorage.clear();
}Note: For a real-world example, see our Web Storage Demo.