blocks|key|662315|text|这是一种使链接在被单击时完全不做任何事情的方式(除非Javascript事件绑定到它)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|662316|它是一种运行Javascript而不是跟随链接的方式：|662317|<a+href="Javascript:+doStuff();">link</a>|code-block|syntax|javascript|662318|当实际上没有javascript可运行时(如您的示例)，它什么也不做。|662319|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

It is a way of making a link do absolutely nothing when clicked (unless Javascript events are bound to it).

It is a way of running Javascript instead of following a link:

<pre><code>&lt;a href="Javascript: doStuff();"&gt;link&lt;/a&gt;
</code></pre>

When there isn't actually javascript to run (like your example) it does nothing.

blocks|key|662323|text|<a+href="javascript:void(0);"></a>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|662324|javascript:告诉浏览器要编写javascript代码|unstyled|offset|length|style|CODE|662325|entityMap^0|0|0|B|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|N|8|@$G|O|H|P|I|J]]|9|@]|A|$]]|$1|K|3|-4|5|F|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<pre><code>&lt;a href="javascript:void(0);"&gt;&lt;/a&gt;
</code></pre>

<code>javascript:</code> tells the browser going to write javascript code

blocks|key|2865363|text|<a+href="javascript:alert('Hello');"></a>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2865364|这只是以下的简写：|unstyled|2865365|<a+href=""+onclick="alert('Hello');+return+false;"></a>|2865366|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|L|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|I|3|-4|5|F|7|N|8|@]|9|@]|A|$]]]|J|$]]

<pre><code>&lt;a href="javascript:alert('Hello');"&gt;&lt;/a&gt;
</code></pre>

is just shorthand for:

<pre><code>&lt;a href="" onclick="alert('Hello'); return false;"&gt;&lt;/a&gt;
</code></pre>

blocks|key|4763024|text|基本上，不是使用链接来移动页面(或锚点)，而是使用此方法启动一个javascript函数|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4763025|<script>
function+doSomething()+{
++alert("hello")
}
</script>
<a+href="javascript:doSomething();">click+me</a>|code-block|syntax|javascript|4763026|单击该链接将触发警报。|4763027|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

basically instead of using the link to move pages (or anchors), using this method launches a javascript function(s)

<pre><code>&lt;script&gt;
function doSomething() {
 alert("hello")
}
&lt;/script&gt;
&lt;a href="javascript:doSomething();"&gt;click me&lt;/a&gt;
</code></pre>

clicking the link will fire the alert.

blocks|key|4763096|text|除非具有href或name属性，否则<a>元素是无效的HTML.|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4763097|如果你想让它正确地呈现为一个链接(如下划线、指针等)，那么它只有在有href属性的情况下才会这样做。|4763098|因此，有时会将这样的代码用作创建链接的一种方式，但不必在href属性中提供实际的URL。开发人员显然希望链接本身不做任何事情，这是他所知道的最简单的方法。|4763099|他可能在其他地方有一些javascript事件代码，当点击链接时触发，这将是他实际希望发生的事情，但他希望它看起来像一个普通的<a>标记链接。|4763100|一些开发人员将href='#'用于相同的目的，但这会导致浏览器跳转到页面的顶部，这可能不是我们想要的。他不能简单地将href留空，因为href=''是一个指向当前页面的链接(即它会导致页面刷新)。|4763101|有一些方法可以绕过这些事情。在href中使用空的Javascript代码就是其中之一，尽管这不是最好的解决方案，但它确实有效。|4763102|entityMap^0|4|4|9|4|I|3|0|Y|4|0|S|4|0|1R|3|0|7|8|1V|7|0|F|4|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]|$9|U|A|V|B|C]|$9|W|A|X|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|14|8|@$9|15|A|16|B|C]]|D|@]|E|$]]|$1|L|3|M|5|6|7|17|8|@$9|18|A|19|B|C]|$9|1A|A|1B|B|C]]|D|@]|E|$]]|$1|N|3|O|5|6|7|1C|8|@$9|1D|A|1E|B|C]]|D|@]|E|$]]|$1|P|3|-4|5|6|7|1F|8|@]|D|@]|E|$]]]|Q|$]]

An <code>&lt;a&gt;</code> element is invalid HTML unless it has either an <code>href</code> or <code>name</code> attribute.

If you want it to render correctly as a link (ie underlined, hand pointer, etc), then it will only do so if it has a <code>href</code> attribute.

Code like this is therefore sometimes used as a way of making a link, but without having to provide an actual URL in the <code>href</code> attribute. The developer obviously wanted the link itself not to do anything, and this was the easiest way he knew.

He probably has some javascript event code elsewhere which is triggered when the link is clicked, and that will be what he wants to actually happen, but he wants it to look like a normal <code>&lt;a&gt;</code> tag link.

Some developers use <code>href='#'</code> for the same purpose, but this causes the browser to jump to the top of the page, which may not be wanted. And he couldn't simply leave the href blank, because <code>href=''</code> is a link back to the current page (ie it causes a page refresh).

There are ways around these things. Using an empty bit of Javascript code in the <code>href</code> is one of them, and although it isn't the best solution, it does work.

blocks|key|662404|text|有几种机制可以避免链路到达其目的地。问题中的问题并不是很直观。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|662405|一种更简洁的选择是使用href="#no"，其中#no是文档中未定义的锚点。|offset|length|style|CODE|662406|您可以使用更具语义的名称，如#disable或#action，以提高可读性。|662407|该方法的好处：|BOLD|662408|通过使用javascript+href="#"|662409|Avoids+，javascript|unordered-list-item|662410|
|662411|避免了空javascript|662412|
的“上移”效果|662413|缺点：|662414|必须确保在document.|662415|The+|662416|662417|更改中未使用锚点名称，以包括(不存在的)锚点作为片段，并创建新的浏览器历史记录条目。这意味着在单击链接后单击“上一步”按钮将不会按预期运行。|662418|662419|由于<a>元素不充当链接，因此在这些情况下，最好的选择不是使用<a>元素，而是使用<div>，并提供所需的类似链接的样式。|662420|entityMap^0|0|B|A|O|3|0|0|4|3|0|0|0|0|0|0|0|3|0|0|0|0|0|0|2|3|V|3|15|5|0^^$0|@$1|2|3|4|5|6|7|1B|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1C|8|@$D|1D|E|1E|F|G]|$D|1F|E|1G|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|1H|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|1I|8|@$D|1J|E|1K|F|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|1L|8|@]|9|@]|A|$]]|$1|O|3|P|5|Q|7|1M|8|@]|9|@]|A|$]]|$1|R|3|S|5|6|7|1N|8|@]|9|@]|A|$]]|$1|T|3|U|5|Q|7|1O|8|@]|9|@]|A|$]]|$1|V|3|W|5|6|7|1P|8|@]|9|@]|A|$]]|$1|X|3|Y|5|6|7|1Q|8|@$D|1R|E|1S|F|L]]|9|@]|A|$]]|$1|Z|3|10|5|6|7|1T|8|@]|9|@]|A|$]]|$1|11|3|12|5|Q|7|1U|8|@]|9|@]|A|$]]|$1|13|3|S|5|6|7|1V|8|@]|9|@]|A|$]]|$1|14|3|15|5|Q|7|1W|8|@]|9|@]|A|$]]|$1|16|3|-4|5|6|7|1X|8|@]|9|@]|A|$]]|$1|17|3|18|5|6|7|1Y|8|@$D|1Z|E|20|F|G]|$D|21|E|22|F|G]|$D|23|E|24|F|G]]|9|@]|A|$]]|$1|19|3|-4|5|6|7|25|8|@]|9|@]|A|$]]]|1A|$]]

There are several mechanisms to avoid a link to reach its destination. The one from the question is not much intuitive.
A cleaner option is to use <code>href=&quot;#no&quot;</code> where <code>#no</code> is a non-defined anchor in the document.
You can use a more semantic name such as #disable, or #action to increase readability.
Benefits of the approach:
<ul>
<li>Avoids the &quot;moving to the top&quot; effect of the empty href=&quot;#&quot;</li>
<li>Avoids the use of javascript</li>
</ul>
Drawbacks:
<ul>
<li>You must be sure the anchor name is not used in the document.</li>
<li>The URL changes to include the (non-existing) anchor as fragment and a new browser history entry is created. This means that clicking the &quot;back&quot; button after clicking the link won't behave as expected.</li>
</ul>
Since the <code>&lt;a&gt;</code> element is not acting as a link, the best option in these cases is not using an <code>&lt;a&gt;</code> element but a <code>&lt;div&gt;</code> and provide the desired link-like style.

blocks|key|2865554|text|请参考以下内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2865555|<a+href="Http://WWW.stackoverflow.com">Link+to+the+website+opened+in+different+tab</a>
<a+href="#MyDive">Link+to+the+div+in+the+page(look+at+the+chaneged+url)</a>
<a+href="javascript:;">Nothing+happens+if+there+is+no+javaScript+to+render</a>|code-block|syntax|javascript|2865556|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Refer to this:
<pre class="lang-html prettyprint-override"><code>&lt;a href=&quot;Http://WWW.stackoverflow.com&quot;&gt;Link to the website opened in different tab&lt;/a&gt;
&lt;a href=&quot;#MyDive&quot;&gt;Link to the div in the page(look at the chaneged url)&lt;/a&gt;
&lt;a href=&quot;javascript:;&quot;&gt;Nothing happens if there is no javaScript to render&lt;/a&gt;
</code></pre>

blocks|key|4480896|text|旧线程，但我想我只是补充说，开发人员使用此结构的原因不是为了创建死链接，而是因为由于某种原因，javascript+URL不能正确地传递对活动html元素的引用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4480897|例如，handler_function(this.id)的工作方式是onClick，而不是javascript+URL。|offset|length|style|CODE|4480898|因此，这是一个选择，要么是编写符合标准的代码，让你不得不手动调整每个超链接的调用，要么是稍微不标准的代码，只需编写一次，就可以在任何地方使用。|4480899|entityMap^0|0|3|P|Y|7|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@$D|N|E|O|F|G]|$D|P|E|Q|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|R|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|K|$]]

Old thread but thought I'd just add that the reason developers use this construct is not to create a dead link, but because javascript URLs for some reason do not pass references to the active html element correctly. 

e.g. <code>handler_function(this.id)</code> works as <code>onClick</code> but not as a javascript URL. 

Thus it's a choice between writing pedantically standards-compliant code that involves you in having to manually adjust the call for each hyperlink, or slightly non-standard code which can be written once and used everywhere.

blocks|key|4763228|text|始终正确呈现链接的最佳方法是使用css，如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4763229|a+{cursor:+pointer+!important}|code-block|syntax|javascript|4763230|一个人应该避免遵循不必要的东西，比如在帖子中提到的。|4763231|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

The best way to always render a link properly is with the css as follows:

<pre><code>a {cursor: pointer !important}
</code></pre>

One should avoid to follow un-necessary things like mentioned in the thread.

blocks|key|4481056|text|它被用来在href内部编写js代码，而不是像onclick这样的事件侦听器，并避免在href中使用#链接，以使a标记对HTML有效。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4481057|有趣的事实|4481058|我研究了如何在href属性中使用javascript:，得到的结果是我可以在里面写多行！|BOLD|4481059|<a+href="
+++++javascript:
++++++++a+=+4;
++++++++console.log(a%2B%2B);+
++++++++a+%2B=+2;+
++++++++console.log(a%2B%2B);+
++++++++if(a+<+6){+
++++++++++++console.log('a+is+lower+than+6');
++++++++}+
++++++++else+
++++++++++++console.log('a+is+greater+than+6');
++++++++function+log(s){
++++++++++++console.log(s);
++++++++}
++++++++log('function+implementation+working+too');

">Click+here</a>|code-block|syntax|javascript|4481060|在chrome版本68.0.3440.106+(官方版本)(64位)中测试的|4481061|unordered-list-item|4481062|4481063|在Firefox+61.0.1+(64位)中测试的|4481064|4481065|4481066|entityMap^0|5|4|M|7|16|4|1D|1|1J|1|0|0|7|4|G|B|15|2|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]|$9|13|A|14|B|C]|$9|15|A|16|B|C]|$9|17|A|18|B|C]|$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1B|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|1C|8|@$9|1D|A|1E|B|C]|$9|1F|A|1G|B|C]|$9|1H|A|1I|B|J]]|D|@]|E|$]]|$1|K|3|L|5|M|7|1J|8|@]|D|@]|E|$N|O]]|$1|P|3|Q|5|6|7|1K|8|@]|D|@]|E|$]]|$1|R|3|-4|5|S|7|1L|8|@]|D|@]|E|$]]|$1|T|3|-4|5|6|7|1M|8|@]|D|@]|E|$]]|$1|U|3|V|5|6|7|1N|8|@]|D|@]|E|$]]|$1|W|3|-4|5|S|7|1O|8|@]|D|@]|E|$]]|$1|X|3|-4|5|6|7|1P|8|@]|D|@]|E|$]]|$1|Y|3|-4|5|6|7|1Q|8|@]|D|@]|E|$]]]|Z|$]]

It's used to write js codes inside of <code>href</code> instead of event listeners like <code>onclick</code> and avoiding <code>#</code> links in <code>href</code> to make <code>a</code> tags valid for HTML.
<h2>Interesting fact</h2>
I had a research on how to use <code>javascript:</code> inside of <code>href</code> attribute and got the result that I can write multiple lines in it!
<pre><code>&lt;a href=&quot;
 javascript:
 a = 4;
 console.log(a++); 
 a += 2; 
 console.log(a++); 
 if(a &lt; 6){ 
 console.log('a is lower than 6');
 } 
 else 
 console.log('a is greater than 6');
 function log(s){
 console.log(s);
 }
 log('function implementation working too');

&quot;&gt;Click here&lt;/a&gt;
</code></pre>
<ul>
<li>Tested in chrome Version 68.0.3440.106 (Official Build) (64-bit)
</li>
<li>Tested in Firefox Quantum 61.0.1 (64-bit)
</li>
</ul>

blocks|key|2865789|text|由于这是一个样式问题，而不是用无效语法污染HTML.您可以/应该使用W3有效的解决方法：|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2865790|遵循W3+accessibility+guide+lines+for+buttons.|2865791|Use+|unordered-list-item|2865792|
|2865793|来修正在控件上应用可点击的UX效果的初始目标，从而正确地格式化，而不使用href。|CODE|2865794|2865795|这里有一个live+example供你试用UX。|2865796|HTML|2865797|++++<a+role="button"+aria-pressed="false">Underlined+%2B+Pointer</a>
++++<a+role="button"+aria-pressed="false"+class="btn">Pointer</a>|code-block|syntax|javascript|2865798|CSS|2865799|++++a[role="button"]:not([href]):not(.btn)+{+text-decoration:+underline;+}
++++a[role="button"]:not([href])+{+cursor:+pointer;+}|2865800|entityMap|0|LINK|mutability|MUTABLE|url|https://www.w3.org/TR/wai-aria-practices/examples/button/button.html|1|https://codepen.io/martindubenet/pen/gOLqXWe^0|Y|5|0|2|14|0|0|0|0|10|4|0|0|5|C|1|0|0|4|0|0|0|3|0|0^^$0|@$1|2|3|4|5|6|7|1D|8|@$9|1E|A|1F|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1G|8|@]|D|@$9|1H|A|1I|1|1J]]|E|$]]|$1|H|3|I|5|J|7|1K|8|@]|D|@]|E|$]]|$1|K|3|L|5|6|7|1L|8|@]|D|@]|E|$]]|$1|M|3|N|5|J|7|1M|8|@$9|1N|A|1O|B|O]]|D|@]|E|$]]|$1|P|3|-4|5|6|7|1P|8|@]|D|@]|E|$]]|$1|Q|3|R|5|6|7|1Q|8|@]|D|@$9|1R|A|1S|1|1T]]|E|$]]|$1|S|3|T|5|6|7|1U|8|@$9|1V|A|1W|B|C]]|D|@]|E|$]]|$1|U|3|V|5|W|7|1X|8|@]|D|@]|E|$X|Y]]|$1|Z|3|10|5|6|7|1Y|8|@$9|1Z|A|20|B|C]]|D|@]|E|$]]|$1|11|3|12|5|W|7|21|8|@]|D|@]|E|$X|Y]]|$1|13|3|-4|5|6|7|22|8|@]|D|@]|E|$]]]|14|$15|$5|16|17|18|E|$19|1A]]|1B|$5|16|17|18|E|$19|1C]]]]

Since it is a styling issue, instead of polluting the HTML with non valid syntax, you could/should use a W3 valid workaround:
<ol>
<li>Format the HTML properly, without <code>href</code>, following the <a href="https://www.w3.org/TR/wai-aria-practices/examples/button/button.html" rel="nofollow noreferrer">W3 accessibility guide lines for buttons</a>.</li>
<li>Use CSS to fix the initial goal of applying a clickable UX effect on a control.</li>
</ol>
Here's a <a href="https://codepen.io/martindubenet/pen/gOLqXWe" rel="nofollow noreferrer">live example</a> for you to try the UX.
HTML
<pre class="lang-html prettyprint-override"><code> &lt;a role=&quot;button&quot; aria-pressed=&quot;false&quot;&gt;Underlined + Pointer&lt;/a&gt;
 &lt;a role=&quot;button&quot; aria-pressed=&quot;false&quot; class=&quot;btn&quot;&gt;Pointer&lt;/a&gt;
</code></pre>
CSS
<pre class="lang-css prettyprint-override"><code> a[role=&quot;button&quot;]:not([href]):not(.btn) { text-decoration: underline; }
 a[role=&quot;button&quot;]:not([href]) { cursor: pointer; }
</code></pre>

blocks|key|4763423|text|++++1.+Use+that+java+script+to+Clear+an+HTML+row+Or+Delete+a+row+using+the+id+set+to+a+span+and+use+JQuery+to+set+a+function+to+that+span's+click+event.
++++2.+Dynamically+set+the+div+html+to+a+string+variable+and+replace+{id}+with+a+1+or+2+etc.+cell+of+a+larger+div+table+and+rows

<div+class="table-cell">
++++<span+id="clearRow{id}">
++++++++<a+href="javascript:"+style-"color:#c32029;+align:right;+font-size:8pt;">Clear</a>
++++
</div>

<div+class="table-cell">
+++<span+id="deleteRow{id}">
+++++++<a+href="javascript:"+style-"color:#c32029;+align:right;+font-size:8pt;">Delete</a>
+++
</div>

//JQuery+-+Clear+row
$("#clearRow"+%2B+idNum).click(function(){
++++$("someIDOrWildcardSelector"+%2B+idNum).val("");
++++$("someIDOrWildcardSelector"+%2B+idNum).val("");
++++$("someIDOrWildcardSelector"+%2B+idNum).val("");
});

//JQuery+to+remove+/+delete+an+html+row
$("#deleteRow"+%2B+idNum).click(function(){
++++//depending+upon+levels+of+parent+/+child+use+1+to+many+.parent().parent().parent()
++++$(this).parent().remove();
});|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4763424|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code> 1. Use that java script to Clear an HTML row Or Delete a row using the id set to a span and use JQuery to set a function to that span's click event.
 2. Dynamically set the div html to a string variable and replace {id} with a 1 or 2 etc. cell of a larger div table and rows

&lt;div class=&quot;table-cell&quot;&gt;
 &lt;span id=&quot;clearRow{id}&quot;&gt;
 &lt;a href=&quot;javascript:&quot; style-&quot;color:#c32029; align:right; font-size:8pt;&quot;&gt;Clear&lt;/a&gt;
 &lt;/span&gt;
&lt;/div&gt;

&lt;div class=&quot;table-cell&quot;&gt;
 &lt;span id=&quot;deleteRow{id}&quot;&gt;
 &lt;a href=&quot;javascript:&quot; style-&quot;color:#c32029; align:right; font-size:8pt;&quot;&gt;Delete&lt;/a&gt;
 &lt;/span&gt;
&lt;/div&gt;

//JQuery - Clear row
$(&quot;#clearRow&quot; + idNum).click(function(){
 $(&quot;someIDOrWildcardSelector&quot; + idNum).val(&quot;&quot;);
 $(&quot;someIDOrWildcardSelector&quot; + idNum).val(&quot;&quot;);
 $(&quot;someIDOrWildcardSelector&quot; + idNum).val(&quot;&quot;);
});

//JQuery to remove / delete an html row
$(&quot;#deleteRow&quot; + idNum).click(function(){
 //depending upon levels of parent / child use 1 to many .parent().parent().parent()
 $(this).parent().remove();
});
</code></pre>

blocks|key|2865837|text|我正在寻找一种不刷新页面，但在Ipads和手机上打开菜单项的解决方案。我在手机上也试过了，效果很好。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2865838|​|2865839|<a+href="#"+onclick="return+false;">Dr</a>|code-block|syntax|javascript|2865840|2865841|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|N|8|@]|9|@]|A|$G|H]]|$1|I|3|C|5|6|7|O|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|K|$]]

I was searching for a solution that does not refresh pages but opens menu items on Ipads and phones.
I tried it on also mobile, It works well
<div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;a href="#" onclick="return false;"&gt;Dr&lt;/a&gt;</code></pre>
</div>
</div>

I have seen the following href used in webpages from time to time. However, I don't understand what this is trying to do or the technique. Can someone elaborate please?

<pre><code>&lt;a href="javascript:;"&gt;&lt;/a&gt;
</code></pre>

What does href expression <a href="javascript:;"></a> do?

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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我经常在网页中看到下面的href。然而，我不明白这是要做什么，也不明白这是什么技术。有没有人能详细解释一下？<a href="javascript:;"></a>

问href表达式<a href="javascript:;"></a>做什么？
EN

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问href表达式<a href="javascript:;"></a>做什么？EN