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Preface This article is based on a basic shopping cart demand, step by step, to give you a deep understanding of the pit and Optimization in React Hook You can learn from this article: A kind of Practice of writing business components with React Hook + TypeScript A kind of How to use React.memo to optimize performance A kind of ...

The following example scenario is written by myself after I read the official document. Please refer to: Official document: Status Improvement The following scenarios are the same as the temperature conversion scenarios in the official documents: Temperature value conversion scenario Let's start my scene, Example: First ...

I've written some code of enumeration process before. I'm reviewing the code I learned before these two days. I see the CreateToolhelp32Snapshot function. By the way, let's see its specific implementation. The process of enumerating process information seems easy, just some Windows API functions: Creat ...

background When using Ant Design Pro for development, if it is a component rendering error, the whole page will be directly white screen in the production environment, resulting in a very poor user experience. Generally speaking, when there is a page error, it's OK to prompt the page error. The menu bar on the left should be able to be used nor ...

JS HTML DOM When the web page is loaded, the browser creates the document object model of the page. With the HTML DOM, JavaScript can access and change all elements of an HTML document. DOM document operation Find HTML elements Method describe Example document.getElementById(id) Find elements ...

Usage and summary of Rudex What is Redux Redux is a popular JavaScript framework that provides a predictable state container (data state management framework) for applications. Redux is based on a simplified version of the Flux framework, a framework developed by Facebook. In the standard MVC framew ...

Node basic command npm installation dependency [npm install xxx] using npm to install xxx depends on the directory where the current command line is located [npm install xxx -g] use npm to install global dependency xxx [npm install xxx – save] install and write to "dependencies" of pac ...

Basic configuration of React project and solution of common pit 1, Create React project # Global scaffold installation npm install create-react-app -g --save # Create React project create-react-app my-app 2, Implement the loading of Less file 1. Expose profile # Expose the project's profile npm run eject Directory structure after profile e ...

concept For the current common "one-page application", the advantage is that the front-end can handle more complex data models in a more comfortable way, while transforming based on the data model for better interaction. Behind good interaction is a model that corresponds to the state of a page component, which is arbitrarily called ...

Implement rendering different components according to different paths There are two ways to achieve this: HashRouter: it uses monitoring hash change (there is an event hashchange) to realize routing switching. It is a routing container, rendering sub components, and passing (Context context transfe ...