Question

我正在尝试制作时间和日期时钟。尝试调用函数时遇到各种错误：

<html>
<head>
    <title>Very Simple Clock By Ashton</title>
    <script>

        console.log("beginning creation of update function");

        function update() {
            document.getElementById('timeOutput').innerHTML = Date();
        }

        console.log("Successfully created update function");

        console.log("Calling the update function")

        update();

        console.log("successfully called the update function");
        </script>
</head>
<body>
    <p onload="update()" id="timeOutput">ERROR | Could Not Retrieve Time from server</p>
</body>

Answer 1

Body，Img，Iframe广告代码仅支持onload事件p。因此，请使用onclick事件更改，而不是onload

仅加载p

console.log("beginning creation of update function");

        function update() {
            document.getElementById('timeOutput').innerHTML = Date();
        }

<p onload="update()" id="timeOutput">ERROR | Could Not Retrieve Time from server</p>

更改以单击

console.log("beginning creation of update function");

        function update() {
            document.getElementById('timeOutput').innerHTML = Date();
        }

        console.log("Successfully created update function");

        console.log("Calling the update function")

        update();

        console.log("successfully called the update function");

<p onclick="update()" id="timeOutput">ERROR | Could Not Retrieve Time from server</p>

Answer 2

Onload不适用于EventEmitter标签，因此没有用。

将<p>放在update()内将使其起作用。

在JavaScript中调用函数时出错

2 个答案: