javascript - "Object expected"尝试在 Javascript 上输入时间

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错误是
线路:3
字符:3

var d = new Date();
var n = d.getHours();
var timeEnd = setHours(17);
var timeStart = setHours(15);

if(n < timeEnd && n > timeStart){
  var r = confirm("Press a button");
  if (r == true) {
    x = "You pressed OK!";
    _system.shutDown();
  } else {
    x = "You pressed Cancel!";
    die;
  }
}
else {
  window.alert("This isn't the right time!")
}

如果有人可以帮助我解决该问题以及您看到的任何其他错误，那将会很有帮助。

Answer 1

您需要变量d来访问日期对象。

var timeEnd = d.setHours(17);
//           ^^^
var timeStart = d.setHours(15);
//             ^^^

我建议更改此行

var n = d.getHours();

到

var n = Date.now();

因为这适合用于比较的其他时间值。 Date#now :

The Date.now() method returns the number of milliseconds elapsed since 1 January 1970 00:00:00 UTC.

对应于 Date#setHours并使其具有可比性:

The setHours() method sets the hours for a specified date according to local time, and returns the number of milliseconds since 1 January 1970 00:00:00 UTC until the time represented by the updated Date instance.