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}