Abudula__的博客

What is itContext is introduced by react to handle cases like this . When you need some data ,some certain state,but you do not want to pass through multiple layers of components just to get it from A at the top to component D at the very bottom where

根据reactJs官方文档的定义,HOC如下：简要来讲的话，是一种重复利用组件逻辑的技术，接受一个组件，并且返回一个组件。就上上面的例子一样，会接受WrappedComponent然后返回enhancedComponent.下面举例子来讲解。1.创建一个按钮组件，并且监听点击次数import React, { Component, useState, useEffect } from ...