最近在React官网学习Handling Events这一章时,有一处不是很明白.代码如下: class Toggle extends React.Component { constructor(props) { super(props); this.state = {isToggleOn: true}; // This binding is necessary to make `this` work in the callback this.handleClick = this.handleC…
More detail check LInk. Render Prop vs HOC: HOC version for withMouse: import React from 'react' import ReactDOM from 'react-dom' const withMouse = (Component) => { return class extends React.Component { state = { x: 0, y: 0 } handleMouseMove = (even…
React Router v4 allows us to render Routes as components wherever we like in our components. This can provide some interesting use cases for creating dynamic routes on our applications. import React from 'react'; import { BrowserRouter as Router, Rou…
There are many cases where we will need a catch-all route in our web applications. This can include 404-style routes when nothing is match or other use cases where where we receive an invalid route in React Router v4. We can use 'Switch' from 'react-…
With React Router v4 the entire library is built as a series of React components. That means that creating nested Routes is as simple as creating any other nested element in your application. Parent route: <NavLink to="/menu">Menu</NavL…
原文链接: https://segmentfault.com/a/1190000007811296?utm_source=tuicool&utm_medium=referral 初学者对React可能满怀期待,觉得React可能完爆其它一切框架,甚至不切实际地认为React可能连原生的渲染都能完爆——对框架的狂热确实会出现这样的不切实际的期待.让我们来看看React的官方是怎么说的.React官方文档在Advanced Performanec这一节,这样写道: One of the first…
纵观react的tab组件中,即使是github上star数多的tab组件,实现原理都非常冗余. 例如Github上star数超四百星的react-tab,其在render的时候都会动态计算哪个tab是被选中的,哪个该被隐藏: getChildren() { let index = 0; let count = 0; const children = this.props.children; const state = this.state; const tabIds = this.tabIds…
原文链接: https://segmentfault.com/a/1190000007811296?utm_source=tuicool&utm_medium=referral 初学者对React可能满怀期待,觉得React可能完爆其它一切框架,甚至不切实际地认为React可能连原生的渲染都能完爆——对框架的狂热确实会出现这样的不切实际的期待.让我们来看看React的官方是怎么说的.React官方文档在Advanced Performanec这一节,这样写道: One of the first…
