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理解DOM到底是什么
source link: https://juejin.im/post/5c01e2b051882518eb1f785a
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文档对象模型或者说我们熟悉的“DOM”，web网页的一个界面。它本质上是允许程序读取和操作页面的内容，结构和样式的页面API。 接下来一一分解。 网页如何构建 浏览器如何从源HTML文档转到在视口中显示样式化和交互式页面称为“关键渲染路径”。 这些步骤大致可分
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