我的案例:localStorage键+值，当浏览器关闭时应该删除，而不是单个选项卡。
请看看我的代码，如果它是正确的和什么可以改进:
//创建localStorage key + value if (localStorage) { localStorage。myPageDataArr = { "name" => "Dan"， "lastname" => "Bonny" }; ｝ //当浏览器关闭时- psedocode $(窗口).unload(函数(){ localStorage。myPageDataArr = undefined; })；
当前回答
window.addEventListener('beforeunload', (event) => {
localStorage.setItem("new_qus_id", $('.responseId').attr('id'));
var new_qus_no = localStorage.getItem('new_qus_id');
console.log(new_qus_no);
});
if (localStorage.getItem('new_qus_id') != '') {
var question_id = localStorage.getItem('new_qus_id');
} else {
var question_id = "<?php echo $question_id ; ?>";
}
其他回答
window.addEventListener('beforeunload', (event) => {
localStorage.setItem("new_qus_id", $('.responseId').attr('id'));
var new_qus_no = localStorage.getItem('new_qus_id');
console.log(new_qus_no);
});
if (localStorage.getItem('new_qus_id') != '') {
var question_id = localStorage.getItem('new_qus_id');
} else {
var question_id = "<?php echo $question_id ; ?>";
}
试着用
$(window).unload(function(){
localStorage.clear();
});
希望这对你有用
您可以尝试以下代码删除本地存储:
delete localStorage.myPageDataArr;
应该这样做，而不是使用delete操作符:
localStorage.removeItem(key);
有五种方法可供选择:
setItem():将键和值添加到localStorage getItem():通过键从localStorage检索值 removeItem():按键从localStorage中删除一个项 clear():清除所有localStorage key():传递一个数字来检索localStorage的第n个键
您可以使用clear()，该方法在调用时清除该域的所有记录的整个存储。它不接收任何参数。
window.localStorage.clear();
