我正在研究React的内部工作,并且对扩散算法和React纤维之间的差异感到非常困惑

发布于 2025-02-12 19:42:04 字数 94 浏览 0 评论 0原文

反应纤维和扩散算法如何相互连接?反应纤维使用扩散算法还是我试图连接两个完全不同的概念,因为到目前为止,我所理解的都是和解过程的一部分。我想知道他们的执行顺序或这里是否有重叠。

How do React Fiber and diffing algorithm connect with each other? Does React Fiber use diffing algorithm or am I trying to connect two completely different concepts because so far what I have understood is both are a part of the reconciliation process. I want to know their order of execution or if there is any overlap here.

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岛徒 2025-02-19 19:42:04

鉴于我的理解,“纤维”(通常使用大写“ F”)架构是指REACT的内部运作,特别是React处理React 18中的React和解的方式

,以调和并调和表示同意的方式。有DOM本身和虚拟DOM,一个轻巧的副本。最终,这两个代表性模型将需要相互同意。虚拟DOM的更改最终必须反映在DOM中,就像将新代码更改反映到整个代码库中一样。因此,这就是和解发挥作用的地方。对帐是确切确定需要更新DOM的哪些部分,并且由特定算法进行的过程。

只要React与DOM合作并且DOM的“正在进行的工作”版本,就必须进行某种形式的和解。

有多种实施此和解的方法,例如有多种实施任何算法的方法。将纤维架构视为内部反应将虚拟DOM与DOM调和的方式。

With my understanding, “Fiber” (usually with a capital "F") architecture is referring to internal workings of React, specifically the way that React handles reconciliation in React 18.

By the book, to reconcile means to bring into agreement. There is the DOM itself and the virtual DOM, a lightweight copy. Eventually these two representational models will need to be brought into agreement with each other. The changes in the Virtual DOM eventually have to be reflected in the DOM, the same way that new code changes are reflected into an entire codebase. And thus, this is where reconciliation comes into play. Reconciliation is the process of figuring out exactly what parts of the DOM need to be updated and it's carried out by a specific algorithm.

As long as React is working with the DOM and a “work in progress” version of the DOM, reconciliation of some sort will be necessary.

There’s various ways to implement this reconciliation like there are various ways to implement any algorithm. Think of fiber architecture as the way in which React internally reconciles the Virtual DOM with the DOM.

深居我梦 2025-02-19 19:42:04

了解扩散算法和反应纤维之间的差异需要一些有关内部反应如何工作的上下文。

  1. 扩散算法

    • 差异算法是React对帐过程的核心部分,该过程负责有效地更新用户界面,以响应应用程序状态的变化。
    • 当应用程序状态中发生更改时,React需要弄清楚需要更新UI的哪些部分以反映这些更改。扩散算法是反应有效地计算上一个UI状态和新UI状态之间差异的过程。
    • React的差异算法旨在通过比较旧UI状态的虚拟DOM表示所需的更新UI所需的更改数量,并计算将旧UI转换为新UI所需的最小操作集。<<<<<<<<<<<<<<<<<<<。 /li>
  2. 反应纤维

    • React Fiber是React版本16中引入的React Chealiation算法的完整重新实现。与以前的基于堆栈的算法相比,它是一种更复杂和灵活的算法。
    • 纤维旨在通过引入“纤维”的概念 - 可以暂停,中断和恢复的工作单位来提高反应应用的性能和响应能力。
    • React Fiber的关键特征之一是其执行增量渲染的能力。 React Fiber无需在单个渲染循环中完成整个对帐过程,而是可以将工作分为较小的单位(纤维),并将其分布在多个渲染周期中。这允许对优先级和安排高优先级更新(例如用户互动或动画)进行反应,同时仍在背景中的低优先级更新方面取得进展。
    • React Fiber还可以启用异步渲染,错误边界和对并发模式的更好支持(允许Reces可以有效地处理交互作用和更新)的功能。
    • )。)。

总而言之,扩散算法是React的对帐过程的特定部分和响应能力。扩散算法只是反应纤维内部运行方式的一个方面。

Understanding the difference between the diffing algorithm and React Fiber requires a bit of context about how React works internally.

  1. Diffing Algorithm:

    • The diffing algorithm is a core part of React's reconciliation process, which is responsible for efficiently updating the user interface in response to changes in application state.
    • When changes occur in the application's state, React needs to figure out what parts of the UI need to be updated to reflect those changes. The diffing algorithm is the process by which React efficiently computes the difference between the previous UI state and the new UI state.
    • React's diffing algorithm aims to minimize the number of changes needed to update the UI by comparing the virtual DOM representations of the old and new UI states and computing the minimum set of operations required to transform the old UI into the new UI.
  2. React Fiber:

    • React Fiber is a complete reimplementation of the React reconciliation algorithm, introduced in React version 16. It is a more sophisticated and flexible algorithm compared to the previous stack-based algorithm.
    • Fiber is designed to improve the performance and responsiveness of React applications by introducing the concept of "fiber" – lightweight units of work that can be paused, aborted, and resumed.
    • One of the key features of React Fiber is its ability to perform incremental rendering. Instead of attempting to complete the entire reconciliation process in a single render cycle, React Fiber can split the work into smaller units (fibers) and spread it out over multiple render cycles. This allows React to prioritize and schedule high-priority updates, such as user interactions or animations, while still making progress on lower-priority updates in the background.
    • React Fiber also enables features like asynchronous rendering, error boundaries, and better support for concurrent mode (which allows React to efficiently handle interactions and updates in concurrent environments like multi-threaded web browsers).

In summary, the diffing algorithm is a specific part of React's reconciliation process responsible for computing the differences between old and new UI states, while React Fiber is a more comprehensive reimplementation of the reconciliation algorithm that introduces features like incremental rendering and asynchronous rendering to improve performance and responsiveness. The diffing algorithm is just one aspect of how React Fiber operates internally.

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