Question

我创建了一个从列表中随机打开网站的简单脚本。我最近尝试添加一项功能，使用户可以选择每页打开和关闭之间的等待时间（以毫秒为单位）。这是我的代码：

<!DOCTYPE html>
<html>



  <head>

    <title>Smokescreen</title>

  </head>

  <body align="center" style="font-family:monospace">

    <h2 align="center" style="font-family:monospace">
      SmokeScreen
    </h2>

    <h3 align="center" style="font-family:monospace">
      SmokeScreen is a JavaScript program that opens a random site every 3 seconds,
    </h3>

    <h3 align="center" style="font-family:monospace">
      to create a "smokescreen" over your browser history, preventing anyone from [easily] finding your information.
    </h3>

    <h4 align="center" style="font-family:monospace">To exit, close the original window that has the text "Smokescreen" in the title.</h4>


    <p align="center" style="font-family:monospace">

      <a href="github.com/keeganjk/smokescreen" style="font-family:monospace" align="center">Source Code / Learn More</a>
      <br />

      <div style="width: 300px; border: 25px solid #800000; margin:0 auto; font-family:monospace;" align="center">

        <h4 align="center" style="font-family:monospace">Milliseconds to wait before closing page:</h4>
        <h4 id="one" align="center" style="font-family:monospace"></h4>
        <button onclick="millisecs = prompt('New time to wait (in milliseconds)?'); if ( isNaN(milliseconds) ) {millisecs = millisecsBackup} else {millisecsBackup = millisecs} document.getElementById('one').innerHTML = millisecs;" style="font-family:monospace" align="center">Set Wait Time</button>
        <br />
        <br />

      </div>
      <br />

      <div style="margin:0 auto; font-family:monospace" align="center">

        <button onclick="getRandom(0, list.length, millisecs);" style="font-family:monospace" align="center">Start!</button>

      </div>

    </p>


  <script src="script.js"></script>
  <script>
      var millisecs = 3000;
      var millisecsBackup = 3000;
      document.getElementById("one").innerHTML = millisecs;
  </script>

  </body>



</html>

由于某些原因，当我输入不同的数字时，h4中id one @Path("/restServer") public class RestServer { public static final Logger LOG = LoggerFactory.getLogger(BackendServer.class); @POST @Path("/createUser") @Produces(MediaType.TEXT_PLAIN) public String createUser(@HeaderParam("authorization") String authString) { String decodedAuth = ""; String[] authParts = authString.split("\\s+"); String authInfo = authParts[1]; byte[] bytes = Base64.decodeBase64(authInfo); decodedAuth = new String(bytes); String credentials[] = decodedAuth.split(":"); String username = credentials[0]; String password = credentials[1]; UserDAOImpl user = new UserDAOImpl(); user.addUser(username, password); return decodedAuth; }的文字不会更新。我做错了什么？

Answer 1

您正在检查if (isNaN(milliseconds))但是您调用了变量millisecs，因此它会抛出错误。

如果您使用的是现代浏览器，请尝试打开开发人员工具（Windows上的F12 + Mac上的CMD + OPT + i）并检查控制台。

另请注意将内联样式/ onclicks移至<style>和<script>标记：）

为什么这篇文章没有更新？

1 个答案: