Since the hardware preparation was completed in the previous article, the next step is the software preparation. Preparing ...
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文章浏览阅读6次。本文围绕现代 JavaScript 教程仓库中的《自定义元素》章节练习展开，讲解如何基于已有 `` 组件，通过自定义元素（Custom Elements）实现一个每秒自动更新、并向外部派发 `tick` 自定义事件的 `` 实时时钟组件。读完本文你将掌握自定义元素生命周期回调（`connectedCallback` / `disconnect ...
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