Amazon UI 学习笔记

LocalStorage 并没有提供过期时间接口，只能通过存储时间做比对实现

var store = $.AMUI.store;

var storeWithExpiration = {

set: function(key, val, exp) {

store.set(key, {val:val, exp:exp, time:new Date().getTime()});

},

get: function(key) {

var info = store.get(key)

if (!info) {

return null;

}

if (new Date().getTime() - info.time > info.exp) {
return null;
}

return info.val

}

}；

storeWithExpiration.set(‘foo’, ‘bar’, 1000);

setTimeout(function() {

console.log(storeWithExpiration.get(‘foo’));

}, 500) // -> “bar”

setTimeout(function() {

console.log(storeWithExpiration.get(‘foo’));

}, 1500) // -> null

如果获取这些的值回事什么样？

store.get(skey)

//如果本地没有则返回undefined 本地有就是Object {val: Object, exp: 300000, time: 1439801294712}