设置单个数据
localStorage.setItem(key,value);
获取单个数据
localStorage.getItem(key);
获取所有数据
localStorage.valueOf();
删除单个
localStorage.removeItem("xxx")
清空
sessionStorage.clear()
获取所有key
var sessionKeys = Object.keys(sessionStorage)
循环示例
var sessionKeys = Object.keys(sessionStorage)
for (var i=0;i<sessionKeys.length;i++) {
//可以对key 进行分析从而决定是否要删除sessionStorage 里的缓存
console.log(sessionStorage.getItem(sessionKeys[i]))
}
示例(逐行执行)
sessionStorage.setItem('1',new Date().getHours()+'-'+new Date().getMinutes()+'-'+new Date().getSeconds());
sessionStorage.setItem('2',new Date().getHours()+'-'+new Date().getMinutes()+'-'+new Date().getSeconds());
sessionStorage.setItem('3',new Date().getHours()+'-'+new Date().getMinutes()+'-'+new Date().getSeconds());
console.log('获取2'+sessionStorage.getItem('2'));
console.log('获取全部'+sessionStorage.valueOf());
localStorage、sessionStorage区别
localStorage、sessionStorage方法一样
localStorage与sessionStorage的唯一一点区别就是localStorage属于永久性存储,而sessionStorage属于当会话结束的时候,sessionStorage中的键值对会被清空。
https://www.uis.cc/2014/11/02/localStorage-sessionStorage/
https://blog.csdn.net/u011565547/article/details/106203808?spm=1001.2101.3001.6661.1&utm_medium=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7ECTRLIST%7Edefault-1.no_search_link&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-2%7Edefault%7ECTRLIST%7Edefault-1.no_search_link
https://blog.csdn.net/weixin_30527143/article/details/101678449?spm=1001.2101.3001.6650.1&utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7Edefault-1.no_search_link&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7Edefault-1.no_search_link