html 五中localstorage小结
日期：2014-05-17 浏览次数：20907 次
html 5中localstorage小结
html 5中的localstorage的小结 demo,如下:
1)
2) 然后检查浏览器知否支持html 5的localstorage,比如:
3) 写到localstorage,
4) 读localstorage
5 写session storage
6 读session stage
7 清除
function clear_data()
{
if (check_support())
{
localStorage.clear();
sessionStorage.clear();
}
}
html 5中的localstorage的小结 demo,如下:
1)
<!DOCTYPE HTML> <html> <head> <title>HTML5 Web Storage</title> </head> <body> <h1>HTML5 Web Storage</h1> <button type="button" onclick="write_local_storage()">Write Local Storage</button> <button type="button" onclick="read_local_storage()">Read Local Storage</button> <button type="button" onclick="write_session_storage()">Write Session Storage</button> <button type="button" onclick="read_session_storage()">Read Session Storage</button> <button type="button" onclick="clear_data()">Clear</button> </body> </html>
2) 然后检查浏览器知否支持html 5的localstorage,比如:
function check_support()
{
if(typeof(Storage) == "undefined")
{
alert("Sorry! No web storage support!");
return false;
}
return true;
}
3) 写到localstorage,
function write_local_storage()
{
if (check_support())
{
var persistObject = { 'Smith': 23, 'Kobi': 18, 'Alex': 32 };
localStorage.setItem('persist_data', JSON.stringify(persistObject));
}
4) 读localstorage
function read_local_storage()
{
if (check_support())
{
var storage = window.localStorage;
var retrievedObject = storage.getItem('persist_data');
var length = storage.length;
alert("Retrieving " + length + " item(s) from localstroage");
alert(retrievedObject);
}
}
5 写session storage
function write_session_storage()
{
if (check_support())
{
var sessionObject = { 'keycode': 111, 'passpharse': 222, 'id': 888 };
// Put the object into storage
sessionStorage.setItem('session_data', JSON.stringify(sessionObject));
}
}
6 读session stage
function read_session_storage()
{
if (check_support())
{
// Retrieve the object from storage
var storage = window.sessionStorage;
var retrievedObject = storage.getItem('session_data');
var length = storage.length;
alert("Retrieving " + length + " item(s) from localstroage");
alert(retrievedObject);
}
}
7 清除
function clear_data()
{
if (check_support())
{
localStorage.clear();
sessionStorage.clear();
}
}
免责声明： 本文仅代表作者个人观点，与爱易网无关。其原创性以及文中陈述文字和内容未经本站证实，对本文以及其中全部或者部分内容、文字的真实性、完整性、及时性本站不作任何保证或承诺，请读者仅作参考，并请自行核实相关内容。
