Cùng bắt đầu thôi nào ^^ Original DOM. React uses this intermediate representation (which they call “Virtual DOM”) so that they can diff changes between different states, and make changes to a minimal amount of browser DOM nodes. The virtual DOM is a concept implemented by libraries in JavaScript on top of browser APIs.

This article covers the basics of using the Shadow DOM. The Shadow DOM is a browser technology designed primarily for scoping variables and CSS in web components. Light DOM. The Virtual DOM works by modelling two copies of the DOM, the original and an updated version that reflects changes received from the view. The Shadow DOM API is a key part of this, providing a way to attach a hidden separated DOM to an element. The markup a user of your component writes. The DOM … Like the DOM, it is a representation of HTML elements, used to determine what to render on the page and enables the modification of the elements. This results in two copies of the in-memory DOM being present during the diffing process.

But unlike the DOM, the shadow DOM is not based on a full, standalone document. They may also be considered a part of “virtual DOM” implementation in React. Virtual DOM vs Real DOM: DOM: ... With the Document Object Model, programmers can build documents, navigate their structure, and add, modify, or delete elements and content. Shadow DOM is the concept of hiding certain DOM structure from direct manipulation by JS and CSS.
Shadow DOM composition introduces a bunch of new fundamentals in web development.

The central piece of Virtual DOM is its smart diffing algorithm: once the differences in the model have been mapped to the in-memory copy of the DOM, the algorithm finds the minimum number of operations required to update the real DOM. Đúng như tiêu đề thì ở bài viết này các bạn hãy cùng mình tìm hiểu sâu hơn về Original DOM, Shadow DOM và Virtual DOM để có được cái nhìn đầy đủ hơn về chúng nhé. The virtual DOM was created to solve these problems of needing to frequently update the DOM in a more performant way. A virtual DOM can be thought of as a copy of the original DOM. This DOM lives outside the component's shadow DOM. Unlike the DOM or the shadow DOM, the virtual DOM isn't an official specification, but rather a new method of interfacing with the DOM. Before getting into the weeds, let's standardize on some terminology so we're speaking the same lingo. Is the Shadow DOM the same as the Virtual DOM? No, they are different. Từ đó ra đời khái niệm Virtual DOM và Shadow DOM. The Virtual DOM. In React, for every DOM object, there is a corresponding “virtual DOM object.” A virtual DOM object is a representation of a DOM object, like a lightweight copy.

The DOM vs the shadow DOM. It solves issues related to performance: Each element of your page is a child of the virtual DOM tree. Virtual DOM. A virtual DOM object has the same properties as a real DOM object, but it lacks the real thing’s power to directly change what’s on the screen. In some ways, the shadow DOM is a "lite" version of the DOM. It is one of the parts that comprise Web Components standard. Terminology: light DOM vs. shadow DOM. #Overview

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