localStorage and sessionStorageThe localStorage and sessionStorage APIs store data as key-value pairs. While localStorage persists across sessions, sessionStorage data is discarded when the page is closed.storageStoragewidely2015-07-292018-01-29https://storage.spec.whatwg.org/namevalue-storagehttps://developer.mozilla.org/docs/Web/API/Storageapi.Storageapi.Storage.clearapi.Storage.getItemapi.Storage.keyapi.Storage.lengthapi.Storage.removeItemapi.Storage.setItemapi.StorageEventapi.StorageEvent.StorageEventapi.StorageEvent.keyapi.StorageEvent.newValueapi.StorageEvent.oldValueapi.StorageEvent.storageAreaapi.StorageEvent.urlapi.Window.localStorageapi.Window.sessionStorageapi.Window.storage_eventhttps://nowyoucanuse.com/features--localstorage.html