Derek Zhu
React-router understanding A plugin library for react. (react-xxx are basically plug-in libraries) The library we installed here is not react-router. react-router has three libraries for three pla
SPA Definition Single page web application (single page web application, SPA). The entire application has only one complete page. (Single page with multiple components) That is, there is only th
Case introduction In this case, there is a search bar above and a display bar below. After searching, the user’s avatar and username will be displayed. Click on the avatar to enter the user’s homep
Ajax requests in React React needs to integrate a third-party ajax library or package it yourself. Generally use axios. Reason for Proxy cross domain If the proxy is not configured, cross-domain i
Data in React state cannot be changed directly The code in the example is to directly change (wrong) 1234changeWeather(){ const isHot=this.state.isHotthis.state.Hot=!isHot //Error!console.l
Create class components If the class defines the component, the class must inherit React’s built-in class: React.Component 1class MyComponent extends React. Component{} Among them, the co
Console output class Red represents that the output is an instance object, and blue represents who created the instance object. Person {} If the constructor of the class does not receive parameter