The only difference is that localStorage has a different expiration time, sessionStorage will only be accessible while and by the window that created it is open. localStorage lasts until you delete it or the user deletes it. Lets say that you wanted to save a login username and password you would want to use sessionStorageover localStorage for security reasons (ie. another person accessing their account at a later time). But if you wanted to save a user's settings on their machine you would probably want localStorage. All in all:

localStorage—用于长期使用。 sessionStorage—当您需要存储更改的东西或临时的东西时使用

sessionStorage与localStorage相同，只是它只存储一个会话的数据，并且当用户关闭创建它的浏览器窗口时，它将被删除。

其他几点可能有助于理解本地存储和会话存储之间的区别

Both local storage and session storage are scoped to document origin, so https://mydomain.example/ http://mydomain.example/ https://mydomain.example:8080/ All of the above URL's will not share the same storage. (Notice path of the web page does not affect the web storage) Session storage is different even for the document with same origin policy open in different tabs, so same web page open in two different tabs cannot share the same session storage. Both local and session storage are also scoped by browser vendors. So storage data saved by IE cannot be read by Chrome or FF.

The only difference is that localStorage has a different expiration time, sessionStorage will only be accessible while and by the window that created it is open. localStorage lasts until you delete it or the user deletes it. Lets say that you wanted to save a login username and password you would want to use sessionStorageover localStorage for security reasons (ie. another person accessing their account at a later time). But if you wanted to save a user's settings on their machine you would probably want localStorage. All in all:

localStorage—用于长期使用。 sessionStorage—当您需要存储更改的东西或临时的东西时使用

本地存储:保存没有过期日期的用户信息数据，当用户关闭浏览器窗口时，这些数据不会被删除，它将在天，周，月和年可用。

//Set the value in a local storage object
localStorage.setItem('name', myName);

//Get the value from storage object
localStorage.getItem('name');

//Delete the value from local storage object
localStorage.removeItem(name);//Delete specifice obeject from local storege
localStorage.clear();//Delete all from local storege

会话存储:它与本地存储日期相同，只是当web用户关闭浏览器窗口时，它会删除所有窗口。

//set the value to a object in session storege
sessionStorage.myNameInSession = "Krishna";

阅读更多点击

sessionStorage为每个给定的源维护一个单独的存储区域，该存储区域在页面会话期间可用(只要浏览器打开，包括页面重新加载和恢复)。 localStorage做同样的事情，但是即使浏览器关闭并重新打开，它仍然存在。

我从Web存储API中获得了这个