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1, State Hook 1,useState State Hook is a function used in function components (useState), which is used to use state in function components useState The function has a parameter whose value represents the default value of the stateThe return value of the function is an array, which must contain two items Item 1: value of current stat ...

This article aims to be concise and help you get started quickly. By default, you have been exposed to routing related development install Enter the following command to install: // npm npm install react-router-dom // yarn yarn add react-router-dom React router related labels There are eight common components of react Router: import { ...

Modify the configuration of CRA project A project created with create react app cannot modify its internal webpack configuration by default. Unlike Vue cli, it can be modified through a configuration file. Although an eject command can completely expose the configuration, it is an irreversible operation and will lose the convenien ...

preface In this article, we will continue to analyze the two APIs of createRef() and forwardRef() in react. First, we will talk about the concept of ref and how it is used in react, and then analyze the source code implementation of these two methods in react. text First, let's take a look at the basic usage and some concepts of ref in r ...

Use of React Hooks Why do I need a Hook? Hook is a new feature of React 16.8 that allows us to use state and other React features (such as lifecycle) without writing class es. The class component can define its own state, which is used to store the state within the component itself. Functional components are not possible because each call to a ...

study Uncover the secrets of React Technology Render phase - Coordinator - Reconciler work Start at the workflow.syncformoncorrent phase Depends on whether the update is synchronous or asynchronous // performSyncWorkOnRoot calls this method function workLoopSync() { while (workInProgress !== null) { performUnitOfWork(workInProgress); ...

Problem background Today, we need to do a function of clicking icon to slide to the article comment area, using scrollIntoView. It is found that the mobile terminal occasionally fails. The code is as follows: commentRef.current.scrollIntoView({ behavior: 'smooth', }); analysis Think about whether 1 is caused by a browser bug accor ...

Use of redux JavaScript pure function In functional programming, there is a concept called pure function. JavaScript conforms to the paradigm of functional programming, so there is also the concept of pure function; Wikipedia definition of pure functions:   In programming, a function is called a pure function if it meets the following condition ...

preface Recently, I need to implement the requirement of a markdown editor in my project, which is developed based on the React framework, similar to Nuggets: My first thought is that if you can use excellent open source, you must use open source. After all, you can't always build wheels repeatedly. So I asked a lot of friends in my front-e ...

Plugin plug in In the whole process of webpack, loader enables webpack to process more file resources. The plugin exists in the whole packaging process of webpack. The processed content can be processed when the hook exposed by the webpack is triggered. So we can use plugin to process the files in process. index.html file processing Before, ...