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Web Components入门实例教程

 1 year ago
source link: https://blog.51cto.com/u_13567403/5358632
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Web Components入门实例教程

原创

彭世瑜 2022-06-05 14:28:51 ©著作权

文章标签 html 代码示例 sed 文章分类 JavaScript 前端开发 阅读数178

<!-- 定义组件模板 -->
<template id="UserNameTemplate">
  <style>
    .user-name {
      color: green;
    }
  </style>
  <div class="user-name"></div>
</template>

<script>
  // 定义组件
  class UserName extends HTMLElement {
    constructor() {
      super();

      let shadow = this.attachShadow({ mode: "closed" });

      let content = document
        .querySelector("#UserNameTemplate")
        .content.cloneNode(true);
      console.log(this.getAttribute("name"));
      content.querySelector(".user-name").innerText =
        this.getAttribute("name");

      shadow.appendChild(content);
    }
  }

  // 注册组件
  window.customElements.define("user-name", UserName);
</script>

<!-- 使用组件 -->
<user-name name="Tom"></user-name>

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