Question

我正在使用示例脚本填充我网站中的表格。基本上我想复制保存一个人的答案，所以如果他们刷新页面，他们的选择仍然存在。我有功能添加项目到表，清除所有按钮工作，主要问题是删除按钮将无法正常工作。我得到了错误;在控制台中“找不到变量”，即使我可以通过检查console.log(window.localStorage);

看到存储的变量

window.addEventListener("load",updateTable,false);

function updateTable() {
    var tbody = document.getElementById("output");
    while (tbody.getElementsByTagName("tr").length > 0) {
    tbody.deleteRow(0);
    }
    var row;
    if (localStorage.length==0) {
        row = tbody.insertRow(i);
        cell = row.insertCell(0);
        cell.colSpan="4";
        cell.innerHTML = "Nothing to Show";
    }
    for (var i=0; i < localStorage.length; ++i) {
        row = tbody.insertRow(i);
        cell = row.insertCell(0);
        cell.innerHTML = i;
        cell = row.insertCell(1);
        cell.innerHTML = localStorage.key(i)
        cell = row.insertCell(2);
        cell.innerHTML = localStorage.getItem(localStorage.key(i));
        cell = row.insertCell(3);
        cell.innerHTML = '<button class="btn btn-danger btn-sm" onclick="deleteItem('+localStorage.key(i)+');"><i class="fa fa-trash-o"></i> Delete</button>';
    }
}
function deleteItem(key) {
    if (!confirm("Are you sure you want to delete this item?")) return;
    localStorage.removeItem(key);
    updateTable();
}

function clearStorage() {
    if (!confirm("Are you sure you want to delete all local storage for this domain?"))     return;
    localStorage.clear();
    updateTable();
}

function save() {
    var key = document.getElementById("key").value;
    var value = document.getElementById("value").value;
    localStorage.setItem(key,value);
    updateTable();
}

Answer 1

您没有在删除调用中分隔键...

cell.innerHTML = '<button class="btn btn-danger btn-sm" onclick="deleteItem(\''+localStorage.key(i)+'\');"><i class="fa fa-trash-o"></i> Delete</button>';

注意我在密钥周围添加了引号。试试看，看看是否有帮助：）

即使console.log显示它，HTML5本地存储也找不到变量

1 个答案: