blocks|key|1636023|text|我想你想要这样的东西。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1636024|​|1636025|++++document.getElementById("number").addEventListener('click',+test);
++++function+test(event)+{
++++++++var+obj+=+document.getElementById("number");
++++++++console.log(obj.innerHTML);
++++++++var+i+=+parseInt(obj.innerHTML);
++++++++obj.innerHTML+=+%2B%2Bi;
++++}|code-block|syntax|javascript|1636026|<span+id="number">0</span>|1636027|1636028|不需要使用outerHTML，否则每次单击时都需要添加侦听|offset|length|style|CODE|1636029|entityMap^0|0|0|0|0|0|5|9|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|U|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|V|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|K|3|C|5|6|7|X|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|Y|8|@$N|Z|O|10|P|Q]]|9|@]|A|$]]|$1|R|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|S|$]]

<p>I think you want something like this.</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>    document.getElementById("number").addEventListener('click', test);
    function test(event) {
        var obj = document.getElementById("number");
        console.log(obj.innerHTML);
        var i = parseInt(obj.innerHTML);
        obj.innerHTML = ++i;
    }</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;span id="number"&gt;0&lt;/span&gt;</code></pre>
</div>
</div>
</p>

<p>No need to use <code>outerHTML</code> otherwise you need to add listen in each click</p>


blocks|key|1636073|text|替换整个元素，使其成为新元素。事件位于旧的"number“元素上，事件不会重新绑定自身。当您只是更新文本时，替换整个元素是没有意义的。使用innerHTML或textContent|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1636074|function+test(event)+{
++++document.getElementById("number").innerHTML+=+i%2B%2B;
}|code-block|syntax|javascript|1636075|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|$]]

<p>You replace the entire element so it is new. The event was on the old "number" element and the event does not rebind itself. It makes no sense to replace the entire element when you are just updating the text. Either use innerHTML or textContent</p>

<pre><code>function test(event) {
    document.getElementById("number").innerHTML = i++;
}
</code></pre>


blocks|key|1636084|text|您正在重写单击内的元素"number“的html，从而再次删除侦听器:下面的内容应该有效：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1636085|++<script>
++++++++document.getElementById("number").addEventListener('click',+test);
++++++++var+i+=+1;
++++++++function+test(event)+{
++++++++++++document.getElementById("number").outerHTML+=+'<span+id="number">'+%2B+(i%2B%2B)+%2B+'</span>';
++++++++++++document.getElementById("number").addEventListener('click',+test);
++++++++}
++++</script>|code-block|syntax|javascript|1636086|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|$]]

<p>You are overriding the html of the element "number" inside the click leading to remove the listener again:
The following should work:</p>

<pre><code>  &lt;script&gt;
        document.getElementById("number").addEventListener('click', test);
        var i = 1;
        function test(event) {
            document.getElementById("number").outerHTML = '&lt;span id="number"&gt;' + (i++) + '&lt;/span&gt;';
            document.getElementById("number").addEventListener('click', test);
        }
    &lt;/script&gt;
</code></pre>


blocks|key|1636115|text|您可以尝试使用innerHTML而不是outerHTML+(后者重新创建元素；事件侦听器不再添加)0|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1636116|<script>
++++document.getElementById("number").addEventListener('click',+test);
++++var+i+=+1;
++++function+test(event)+{
++++++++document.getElementById("number").innerHTML+=+i%2B%2B;
++++}
</script>|code-block|syntax|javascript|1636117|否则，您可以这样重置事件侦听器，同时仍然使用outerHTML。|1636118|<span+id="number">0</span>

<script>
++++document.getElementById("number").addEventListener('click',+test);
++++var+i+=+1;
++++function+test(event)+{
++++++++document.getElementById("number").outerHTML+=+'<span+id="number">'+%2B+(i%2B%2B)+%2B+'</span>';
++++++++document.getElementById("number").addEventListener('click',+test);

++++}
</script>|1636119|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<p>You can try using innerHTML instead of outerHTML ( the latter recreates your element; the event listener is no longer added)
    0</p>

<pre><code>&lt;script&gt;
    document.getElementById("number").addEventListener('click', test);
    var i = 1;
    function test(event) {
        document.getElementById("number").innerHTML = i++;
    }
&lt;/script&gt;
</code></pre>

<p>Otherwise, you can reset the event listener this way, while still using outerHTML</p>

<pre><code>&lt;span id="number"&gt;0&lt;/span&gt;

&lt;script&gt;
    document.getElementById("number").addEventListener('click', test);
    var i = 1;
    function test(event) {
        document.getElementById("number").outerHTML = '&lt;span id="number"&gt;' + (i++) + '&lt;/span&gt;';
        document.getElementById("number").addEventListener('click', test);

    }
&lt;/script&gt;
</code></pre>


blocks|key|1636176|text|​|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1636177|document.getElementById("number").addEventListener('click',+test);
var+i+=+1;
function+test(event)+{
++++this.innerHTML+=+i%2B%2B;
}|code-block|syntax|javascript|1636178|<span+id="number">0</span>|1636179|1636180|不要使用outerHTML，它返回DOM内容，而您正在创建另一个span，因此事件侦听器无法工作，以替代内部内容使用innerHTML。|offset|length|1636181|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.mozilla.org/en-US/docs/Web/API/Element/outerHTML|1|https://developer.mozilla.org/en-US/docs/Web/API/Element/innerHTML^0|0|0|0|0|4|9|0|1M|9|1|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Y|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|I|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|11|8|@]|9|@$L|12|M|13|1|14]|$L|15|M|16|1|17]]|A|$]]|$1|N|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|O|$P|$5|Q|R|S|A|$T|U]]|V|$5|Q|R|S|A|$T|W]]]]

<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>document.getElementById("number").addEventListener('click', test);
var i = 1;
function test(event) {
    this.innerHTML = i++;
}</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;span id="number"&gt;0&lt;/span&gt;</code></pre>
</div>
</div>
</p>

<p>Dont use <a href="https://developer.mozilla.org/en-US/docs/Web/API/Element/outerHTML" rel="nofollow noreferrer">outerHTML</a>, it returns that DOM content and you are creating another span instead, so eventlistener is not working, to replace inner content use <a href="https://developer.mozilla.org/en-US/docs/Web/API/Element/innerHTML" rel="nofollow noreferrer">innerHTML</a>.</p>


<p>I have simple code:</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>document.getElementById("number").addEventListener('click', test);
var i = 1;
function test(event) {
    document.getElementById("number").outerHTML = '&lt;span id="number"&gt;' + (i++) + '&lt;/span&gt;';
}</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;span id="number"&gt;0&lt;/span&gt;</code></pre>
</div>
</div>
</p>

<p>But this is working only to first click. Next eventListener is not working. How is the best way to make it work?</p>


outerHTML and eventListener

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。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

我有一个简单的代码：​document.getElementById("number").addEventListener('click', test);var i = 1;function test(event) {    document.getElementById("number").outerHTML = '...

问outerHTML和eventListener
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问outerHTML和eventListenerEN