Web Local storage sessionstorage and Localstorage

1, sessionstorage temporary storage

Maintains a storage area for each data source, which exists during browser opening, including page reload.

2, Localstorage long-term storage

Same as Sessionstorage, but data will persist after the browser is closed

Save data to Local

var userinfo={      name:"Zhang San", age      :$,      likes:"song"} Sessionstorage.setitem ("key", Json.stringify (UserInfo)); Localstorage.setitem (

Get data from local storage

var data1=json.parse (Sessionsrorage.getitem ("key")); var data2=json.parse (Localstorage.getitem ("key"));

Delete a saved data from the local store

Sessionsrorage.removeitem ("key"); Localstorage.removeitem ("key");

Delete all saved data

Sessionsrorage.clear (); Localstorage.clear ();

Monitor changes to local storage

Storage changes (add, update, delete) when the trigger, the same page changes will not trigger, will only listen to the same domain name other page changes Storage

function (e) {        console.log (' key ', E.key);        Console.log (' OldValue ', e.oldvalue);        Console.log (' newvalue ', e.newvalue);        Console.log (' url ', e.url);})

Web Local storage sessionstorage and Localstorage