blocks|key|4112206|text|你已经计算了时间，只需检查它是否是你想要的时间，然后open一个url。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4112207|​|4112208|function+startTime()+{
++var+today+=+new+Date('Thu+Jul+26+2018+23:00:00+GMT-0700+(Pacific+Daylight+Time)')

++var+h+=+today.getHours();
++var+m+=+today.getMinutes();
++var+s+=+today.getSeconds();
++if+(h+===+23+&&+m+===+0+&&+s+===+0)+{
++++window.open('https://www.stackoverflow.com',+'_blank');
++}
++m+=+checkTime(m);
++s+=+checkTime(s);
++document.getElementById('txt').innerHTML+=+h+%2B+":"+%2B+m+%2B+":"+%2B+s;
++var+t+=+setTimeout(startTime,+500);
}

function+checkTime(i)+{
++if+(i+<+10)+{
++++i+=+"0"+%2B+i
++};
++return+i;
}|code-block|syntax|javascript|4112209|<body+onload="startTime()">

++<div+id="txt"></div>
</body>|4112210|4112211|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.mozilla.org/en-US/docs/Web/API/Window/open^0|Q|4|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@$A|W|B|X|1|Y]]|C|$]]|$1|D|3|E|5|6|7|Z|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|10|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|H|7|11|8|@]|9|@]|C|$I|J]]|$1|M|3|E|5|6|7|12|8|@]|9|@]|C|$]]|$1|N|3|-4|5|6|7|13|8|@]|9|@]|C|$]]]|O|$P|$5|Q|R|S|C|$T|U]]]]

<p>You already calculate the time, just check to see if it's the time you want, and <a href="https://developer.mozilla.org/en-US/docs/Web/API/Window/open" rel="nofollow noreferrer">open</a> a url.</p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>function startTime() {
  var today = new Date('Thu Jul 26 2018 23:00:00 GMT-0700 (Pacific Daylight Time)')

  var h = today.getHours();
  var m = today.getMinutes();
  var s = today.getSeconds();
  if (h === 23 &amp;&amp; m === 0 &amp;&amp; s === 0) {
    window.open('https://www.stackoverflow.com', '_blank');
  }
  m = checkTime(m);
  s = checkTime(s);
  document.getElementById('txt').innerHTML = h + ":" + m + ":" + s;
  var t = setTimeout(startTime, 500);
}

function checkTime(i) {
  if (i &lt; 10) {
    i = "0" + i
  };
  return i;
}</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;body onload="startTime()"&gt;

  &lt;div id="txt"&gt;&lt;/div&gt;
&lt;/body&gt;</code></pre>
</div>
</div>
</p>


blocks|key|4112604|text|我认为一个简单的setInterval()检查一小时就可以了。下面的代码设置了一个间隔，每隔1秒检查一次小时。如果小时数为23，则清除间隔以确保触发的操作只运行一次，然后执行您想要执行的任何操作。不需要检查分钟和秒，这样你就不需要担心前导零了。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4112605|​|4112606|var+interval+=+window.setInterval(function(){
++var+h+=+new+Date().getHours();
++if+(h+===+23)+{
++++//+clear+interval+to+ensure+that+code+runs+only+once
++++window.clearInterval(interval);
++++//+do+whatever+you+like
++++console.log(h);
++}
},1000);|code-block|syntax|javascript|4112607|4112608|entityMap^0|8|D|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|S|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|T|8|@]|D|@]|E|$K|L]]|$1|M|3|G|5|6|7|U|8|@]|D|@]|E|$]]|$1|N|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|O|$]]

<p>I think a simple <code>setInterval()</code> checking for the hour only would do it. The following code sets a  interval checking the hour every 1 second. If the hour is 23 the interval is cleared to ensure that the triggered action runs only once and then does whatever you want to do. There is no need to check for minutes and seconds as well and this way you don't need to worry about leading zeros.</p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>var interval = window.setInterval(function(){
  var h = new Date().getHours();
  if (h === 23) {
    // clear interval to ensure that code runs only once
    window.clearInterval(interval);
    // do whatever you like
    console.log(h);
  }
},1000);</code></pre>
</div>
</div>
</p>


<p>I have be attempting this for quite a while now and cant get my head around it. I have a javascript which displays a live time. What i am trying to do is build an if statement that says if it hits 23:00:00 then open a link. can anyone help please? anything i use just blanks out the time :(</p>

<pre><code>&lt;script&gt;
function startTime() {
    var today = new Date();
    var h = today.getHours();
    var m = today.getMinutes();
    var s = today.getSeconds();
    m = checkTime(m);
    s = checkTime(s);
    document.getElementById('txt').innerHTML = h + ":" + m + ":" + s;
    var t = setTimeout(startTime, 500);
}
function checkTime(i) {
    if (i &lt; 10) {i = "0" + i};
    return i;
}
&lt;/script&gt;
&lt;/head&gt;
&lt;body onload="startTime()"&gt;

&lt;div id="txt"&gt;&lt;/div&gt;
</code></pre>


Javascript when live time strikes 23:00

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我已经尝试了很长一段时间了，但我的头还是不能理解它。我有一个显示实时时间的javascript。我要做的是构建一个if语句，声明如果命中23:00:00，则打开一个链接。有谁能帮帮忙吗？我使用的任何东西都会让时间空白：<script>function startTime() {    var today = new D...

问当实时时间到达23:00时使用Javascript
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问当实时时间到达23:00时使用Javascript
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