虛擬DOM · React · 看云

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## 虛擬DOM為React中的核心概念之一 **DOM**：瀏覽器中的概念，用js對象來表示頁面上的元素，并提供了DOM對象的API **React中的虛擬DOM**：是框架中的概念，是程序員用js對象來模擬頁面上的DOM和DOM嵌套虛擬DOM的目的：為了實現頁面中，DOM元素的高效能更新

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