Question

我有几个选项下拉。在页面刷新时，我需要先前选择再次选择的选项。

这是我的javascript。

按下按钮启动saveQ1（id）功能当页面加载时，它启动loadQ1（）函数

//Save answer 1 to LocalStorage
        function saveQ1(id) {
        var answer = [document.getElementById("answer1").selectedIndex].value;
        localStorage.setItem('savequestion4656290', answer);
        }

         function loadQ1() {
        //if something was already saved....
        if (localStorage.getItem('savequestion4656290')) {
        var answer = localStorage.getItem('savequestion4656290');
        } else {
        var answer = ' ';
        }

//Put Answer 1 back in to box
        //I NEED SOMETHING HERE WHICH CHOOSES THE CORRECT OPTION (as remembered by local storage)       
         }

最后部分应该放置什么才能显示以前保存的选项。我甚至不确定它的保存是否正常。感谢

Answer 1

如果我正确阅读此内容，您需要添加一行

var answer1 = document.getElementByID("answer1");
answer1.selectedIndex = answer

下拉列表和本地存储问题

1 个答案: