[HTML5] Render Hello World Text with Custom Elements

Custom elements are fun technology. In this video, you will learn how to set one up and running in less than 2 minutes.

You'll learn how to create a Custom Web Element (that extends HTMLElement) that renders text to the browser and respond to a click event listener.

 

复制代码
class MyCustomElement extends HTMLElement {
  constructor() {
    super();
    this.addEventListener("mouseover", () => console.log("Hello World"));
  }

  //lifecycle
  connectedCallback() {
    this.innerHTML = `<h1>Hello Custom ELement</h1>`;
  }
}

window.customElements.define("zwt-element", MyCustomElement);
复制代码
复制代码
<!DOCTYPE html>
<html>

<head>
    <title>Custom Element</title>
    <meta charset="UTF-8" />
</head>

<body>
    <div id="app"></div>
     <zwt-element [msg]="greeting"   />
    <script src="src/index.js">
    </script>
</body>

</html>
复制代码

 

More about custome element

posted @   Zhentiw  阅读(173)  评论(0)  编辑  收藏  举报
编辑推荐：
· SQL Server 2025 AI相关能力初探
· Linux系列：如何用 C#调用 C方法造成内存泄露
· AI与.NET技术实操系列（二）：开始使用ML.NET
· 记一次.NET内存居高不下排查解决与启示
· 探究高空视频全景AR技术的实现原理
阅读排行：
· 阿里最新开源QwQ-32B，效果媲美deepseek-r1满血版，部署成本又又又降低了！
· Manus重磅发布：全球首款通用AI代理技术深度解析与实战指南
· 开源Multi-agent AI智能体框架aevatar.ai，欢迎大家贡献代码
· 被坑几百块钱后，我竟然真的恢复了删除的微信聊天记录！
· AI技术革命，工作效率10个最佳AI工具
历史上的今天：
2018-01-16 [Javascript] Transduce over any Iteratable Collection
2018-01-16 [Javascript] Improve Composition with the Compose Combinator
2017-01-16 [Angular Directive] Create a Template Storage Service in Angular 2
2017-01-16 [Angular Directive] Assign a Structual Directive a Dynamic Context in Angular 2
2017-01-16 [Angular Directive] Implement Structural Directive Data Binding with Context in Angular
2015-01-16 [MODx] 10. Using Babel for Muti-languages support
点击右上角即可分享
微信分享提示
AI IDE Trae