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
Spread operator … (array) The spread operator can split an array or array-like structure into a comma-separated sequence of arguments. 12const arr = [1, 2, 3];console.log(...arr) //result is 1 2 3
Extensions to Functions: Arrow Functions => 123let fn = function(m){return m}; //ordinary functionlet fn = (m) => {return m} //complete writing of arrow functionlet fn
Declares variable a by ‘let’ let is the new way to declare variables in ES6, replacing var. 1234let a;let b, c, d;let e = 100;let f = 521, g = 'iloveyou', h = []; var: allows repeated de