entityMap|0|type|LINK|mutability|MUTABLE|data|url|https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date|1|https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTime|blocks|key|8fi31|text|这里不需要moment，只需要Date+(getTime()方法)|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|9ac57|var+currenttime+=+new+Date().getTime();+//+Count+milliseconds+since+1970
$(".tbody").append("<tr><td+class='tdata'+data-id='"%2Bcurrenttime%2B"'>0+seconds</td></tr>");


setInterval(function(){+
++var+oldtime+=+parseInt($(".tdata").data("id"));+//+HTML+store+it+as+String,+don't+forget+to+transform+it+to+int+"14254782000"+>+14254782000
++var+seconds+=+parseInt((new+Date().getTime()+-+oldtime)+/+1000);
++$(".tdata").html(seconds%2B+"+secs");
},+1000);|code-block|syntax|javascript|catdt|这样，你存储的不是一个moment对象，而是一个秒数(int)，而且它总是现在-过去(而不是过去-现在)，因为现在比过去要高(我们想要一个正值)。|c6f8n^0|F|4|0|L|9|1|0|0|0^^$0|$1|$2|3|4|5|6|$7|8]]|9|$2|3|4|5|6|$7|A]]]|B|@$C|D|E|F|2|G|H|U|I|@]|J|@$K|V|L|W|C|X]|$K|Y|L|Z|C|10]]|6|$]]|$C|M|E|N|2|O|H|11|I|@]|J|@]|6|$P|Q]]|$C|R|E|S|2|G|H|12|I|@]|J|@]|6|$]]|$C|T|E|-4|2|G|H|13|I|@]|J|@]|6|$]]]]

<p>You don't need moment here but just <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date" rel="nofollow noreferrer">Date</a> (<a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTime" rel="nofollow noreferrer">getTime()</a> method)</p>

<pre><code>var currenttime = new Date().getTime(); // Count milliseconds since 1970
$(".tbody").append("&lt;tr&gt;&lt;td class='tdata' data-id='"+currenttime+"'&gt;0 seconds&lt;/td&gt;&lt;/tr&gt;");


setInterval(function(){ 
  var oldtime = parseInt($(".tdata").data("id")); // HTML store it as String, don't forget to transform it to int "14254782000" &gt; 14254782000
  var seconds = parseInt((new Date().getTime() - oldtime) / 1000);
  $(".tdata").html(seconds+ " secs");
}, 1000);
</code></pre>

<p>This way you're not storing a moment object but a number of seconds (int), also it's always Now - Past (and not Past - Now) because Now is higher than Past (and we want a positive value).</p>


entityMap|blocks|key|f5p6d|text|我不知道该怎么解释这个例子：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|36jc3|​|45s0t|$("button").on("click",+function(){
++$("tbody").append("<tr><td+class='tdata'><span+data-seconds-since="+%2B+Date.now()+%2B+">0</span>+seconds</td></tr>");
});

//+updates+all+places+at+once
setInterval(function(){+
++var+now+=+Date.now();
++$("[data-seconds-since]").text(function(){
++++return+((now+-+this.dataset.secondsSince)+/+1000).toFixed(1)
++});
},+40);|code-block|syntax|javascript|ri84|<script+src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<table><tbody></tbody></table>

<button+type="button">Add+Row</button>|94cin|3tbfr^0|0|0|0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|N|9|@]|A|@]|B|$]]|$2|C|4|D|6|7|8|O|9|@]|A|@]|B|$]]|$2|E|4|F|6|G|8|P|9|@]|A|@]|B|$H|I]]|$2|J|4|K|6|G|8|Q|9|@]|A|@]|B|$H|I]]|$2|L|4|D|6|7|8|R|9|@]|A|@]|B|$]]|$2|M|4|-4|6|7|8|S|9|@]|A|@]|B|$]]]]

<p>Don't know what to explain about this example:</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>$("button").on("click", function(){
  $("tbody").append("&lt;tr&gt;&lt;td class='tdata'&gt;&lt;span data-seconds-since=" + Date.now() + "&gt;0&lt;/span&gt; seconds&lt;/td&gt;&lt;/tr&gt;");
});

// updates all places at once
setInterval(function(){ 
  var now = Date.now();
  $("[data-seconds-since]").text(function(){
    return ((now - this.dataset.secondsSince) / 1000).toFixed(1)
  });
}, 40);</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"&gt;&lt;/script&gt;

&lt;table&gt;&lt;tbody&gt;&lt;/tbody&gt;&lt;/table&gt;

&lt;button type="button"&gt;Add Row&lt;/button&gt;</code></pre>
</div>
</div>
</p>


entityMap|0|type|LINK|mutability|MUTABLE|data|url|https://momentjs.com/docs/#/durations/|blocks|key|4k96v|text|小小的改变|unstyled|depth|inlineStyleRanges|entityRanges|3rptg|var+starts+=+Date.now();
//...
var+diff+=+(Date.now()+-+starts)+/+10000;|code-block|syntax|javascript|6je6q|你也可以检查moment.duration，因为你已经在使用momentJS了。|offset|length|ahidn^0|0|0|6|F|0|0^^$0|$1|$2|3|4|5|6|$7|8]]]|9|@$A|B|C|D|2|E|F|S|G|@]|H|@]|6|$]]|$A|I|C|J|2|K|F|T|G|@]|H|@]|6|$L|M]]|$A|N|C|O|2|E|F|U|G|@]|H|@$P|V|Q|W|A|X]]|6|$]]|$A|R|C|-4|2|E|F|Y|G|@]|H|@]|6|$]]]]

<p>Little change</p>

<pre><code>var starts = Date.now();
//...
var diff = (Date.now() - starts) / 10000;
</code></pre>

<p>You can also check <a href="https://momentjs.com/docs/#/durations/" rel="nofollow noreferrer">moment.duration</a> since your already using momentJS.</p>


<p>I am creating certain table rows dynamically using jquery , I want to display created ago in seconds in that row, I tried below code</p>

<pre><code>var currenttime = moment();
$(".tbody").append("&lt;tr&gt;&lt;td class='tdata' data-id='"+currenttime+"'&gt;0 seconds&lt;/td&gt;&lt;/tr&gt;");


setInterval(function(){ 
var latest = moment();
var oldtime = $(".tdata").data("id");
var newtime = oldtime-latest;
$(".tdata").html(newtime+ "secs");
}, 3000);
</code></pre>

<p>So basically i am storing current time while row creation and then checking randomly and displaying the total seconds (not minutes or hours) , if 5 mins it should display 300.</p>

<p>I tried var later = moment(); , but it creates object i cannot store it in data-attribute , it will be great even if it can be done without momentjs , any ideas please , thnank you.</p>


Difference between two timestamp in seconds

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。

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 我正在使用jquery动态创建某些表行，我希望在该行中显示几秒钟之前创建的行，我尝试了下面的代码 var currenttime = moment();$(".tbody").append("<tr><td class='tdata' data-id='"+currenttime+"'>0 seconds</td><...

问两个时间戳之间的差异(以秒为单位
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问两个时间戳之间的差异(以秒为单位EN