Question

我正在进行JavaScript倒计时时钟扩展，我希望用户输入日期，并保存该日期，但每当用户再次打开扩展时，它都不会保存以前的输入。有没有办法永久保存用户输入？提前谢谢！

var countDownDate = new Date(prompt("Enter Your Date")).getTime();

Answer 1

我只是通过w3schools的例子与你联系，你可以阅读localStorage api https://www.w3schools.com/html/html5_webstorage.asp

<!DOCTYPE html>
<html>
<head>
<script>
function clickCounter() {
    if(typeof(Storage) !== "undefined") {
        if (localStorage.clickcount) {
            localStorage.clickcount = Number(localStorage.clickcount)+1;
        } else {
            localStorage.clickcount = 1;
        }
        document.getElementById("result").innerHTML = "You have clicked the button " + localStorage.clickcount + " time(s).";
    } else {
        document.getElementById("result").innerHTML = "Sorry, your browser does not support web storage...";
    }
}
</script>
</head>
<body>
<p><button onclick="clickCounter()" type="button">Click me!</button></p>
<div id="result"></div>
<p>Click the button to see the counter increase.</p>
<p>Close the browser tab (or window), and try again, and the counter will continue to count (is not reset).</p>
</body>
</html>

如何保存用户输入？

1 个答案: