可以优化预加载方法,这样可以预加载任何一个组件: function lazyWithPreload(factory) { const Component = React.lazy(factory); Component.preload = factory; return Component; } const StockChart = lazyWithPreload(() => import("./S
依然是分离逻辑,BlockLoading 是纯UI组件,AjaxBlockLoading能够相应ajax请求状态的Loading组件。 import React from 'react' import BlockLoading from './BlockLoading' class AjaxBlockLoading extends React.Component{ constructor(props) { super(props); this.count = 0; this.state = { display:false } } on...
import React, { Component } from 'react'; import Loading from 'rc-loading'; class App extends Component { constructor(props){ super(props) this.state={ spinning:false } } render() { return ( <Loading spinning={this.state.spinning} displayType={"inlineBlock"}> hello loading </Loading...
wrapper?: React.FunctionComponent <PropsWithChildren<unknown>>A custom wrapper component that goes around the individual skeleton elements. circle?: booleanMakes the skeleton circular by settingborder-radiusto50%.false className?: stringA custom class name for the individual skeleton elements which is ...
unsupportedComponentreact element [optional]: A component to render in case the file format is not supported. To use a custom error component, you might do the following: // MyApp.js import React, { Component } from 'react'; import logger from 'logging-library'; import FileViewer from 're...
正常情况下,await 命令后面是一个 Promise 对象。所以它本身就可以使用.catch来捕获异常,处理 loading 状态的操作,完全可以在.catch进行处理,然后用if判断来控制提前退出,没必要写 try-catch 这种冗余代码。 代码语言:javascript 代码运行次数:0 setLoading(true);letres=awaitgetList().catch(()=>setLoading(false...
Vue.component('loading',{ template: '#loading', props: { loadingRadiusVal: { type: Number, required: true, default: 168 }, dotRadiusVal: { type: Number, required: true, default: 24 }, dotColorVal: { type: String, required: true, default: '#d8d8d8' }, dotNums: { type: Number...
react路由懒加,项目经常上线导致没有刷新的用户出现js文件加载失败: ChunkLoadError: Loading chunk 42 failed.,解决方案:使用错误边界:importReact,{Component}from'react'//错误边界//https://zh-hans.reactjs.org/docs/error-boundaries.html#gatsby-focus-...
We will create animated Content Placeholder as React component just like Facebook has when you load the page. Key points: 1. For each elements on the DOM, you might need to create a placeholder components for that. 2. Different size prop is important ...
this tutorial, Chidi Orji is going to show you how to use theHTMLIntersection ObserverAPI to implement infinite scrolling and image lazy loading in a React functional component. In the process, we’ll learn how to use some of React’s hooks and how to create Custom Hooks. Let’s get ...