在这个例子中,当按钮被点击时,shouldLoadScript状态将被更新为true,从而触发加载脚本的操作。 动态加载脚本在React中的应用场景非常广泛。例如,当某个组件需要依赖外部库或第三方插件时,可以通过动态加载脚本来实现按需加载,减小初始加载的包大小,提高应用性能。另外,动态加载脚本还可以用于延迟加载一些非关键性的功能,提...
React中支持异步加载script,通过react-loadable可以在React中异步import。 但是目前遇到一个问题,引入全局的script标签(不支持CommonJS方式导入)。但是如果把所有标签全部写在index.html中的话,那么第一页加载的速度会变慢,所以希望实现异步引入script标签的方法。 目前通过document.createElement的方法来动态创建脚本标签,然...
"tslib": "^2.4.0", "typescript": "~3.7.2", "xlsx": "^0.18.5", "yarm": "^0.4.0", "yarn": "^1.22.19" }, 三、React踩坑 1、编译 不知道是react本身编译规则严苛,还是公司的pipline设定,代码里面编译的时候不允许有未使用的变量,不允许使用未导入的组件 举个例子,如果使用了分页,但是没...
let pointAndLineDataReady = false; export const POINT_LINE_LIST = [ 'http://10.110.10.15:9000/frontend/gis-model-point.min.js', 'http://10.110.10.15:9000/frontend/gis-model-line.min.js', ] export const loadScript = (url) => { return new Promise((resolve, reject) => { const ...
1、报错提示:Unable to load script.Make sure you're either running a metro server( run 'react-native start' ) or that your bundle 'index.android.bundle' is packaged correctly for release. 2、中文翻译:无法加载脚本。请确保您运行的是Metro服务器(运行'react-native start')或者 您的软件包'index...
循环调用一组函数,动态引入script,在检查元素中的head中script显示已经被引入,但是onload函数没有被执行,并且报错如下: export async function loadScripts(scripts: string[], callback: any) { let HEAD = document.getElementsByTagName('head')[0] let s = []; let loaded = 0; for (let i = 0; i...
loadConfig({ path: dir }); // dir = '.' browserslist.loadConfig 是用来获取 browserslist 配置的 loadConfig: function loadConfig (opts) { if (process.env.BROWSERSLIST) { return process.env.BROWSERSLIST } else if (opts.config || process.env.BROWSERSLIST_CONFIG) { var file = opts.config ...
, this library enables you to load content that is visible on the screen. GuideGuide So you've got your React app, you're bundling it with Webpack, and things are going smooth. But then one day you notice your app's bundle is getting so big that it's slowing things down.It's ...
A decorator for script lazy loading on react component. Description Some component may depend on other vendors which you may not want to load them until you really need them. So here it is, useHigh Order Componentto decorate your component and it will handle lazy loading for you, it support...
loadScript("https://maps.google.com/maps/api/js?key=<your_key>", () => { const latlng = new google.maps.LatLng(38.34, -0.48); const myOptions = { zoom: 15, center: latlng }; const map = new google.maps.Map(this.map, myOptions); ...