安装classlist、babel-polyfill：
npm install --save classlist.js npm install --save babel-polyfill
修改 src 文件夹下的 polyfill.ts 文件：
/** * This file includes polyfills needed by Angular and is loaded before the app. * You can add your own extra polyfills to this file. * * This file is divided into 2 sections: * 1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers. * 2. Application imports. Files imported after ZoneJS that should be loaded before your main * file. * * The current setup is for so-called "evergreen" browsers; the last versions of browsers that * automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera), * Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile. * * Learn more in https://angular.io/docs/ts/latest/guide/browser-support.html */ /*************************************************************************************************** * BROWSER POLYFILLS */ /** IE9, IE10 and IE11 requires all of the following polyfills. **/ import 'core-js/es6/symbol'; import 'core-js/es6/object'; import 'core-js/es6/function'; import 'core-js/es6/parse-int'; import 'core-js/es6/parse-float'; import 'core-js/es6/number'; import 'core-js/es6/math'; import 'core-js/es6/string'; import 'core-js/es6/date'; import 'core-js/es6/array'; import 'core-js/es6/regexp'; import 'core-js/es6/map'; import 'core-js/es6/weak-map'; import 'core-js/es6/set'; /** IE10 and IE11 requires the following for NgClass support on SVG elements */ import 'classlist.js'; // Run `npm install --save classlist.js`. /** IE10 and IE11 requires the following for the Reflect API. */ import 'core-js/es6/reflect'; /** Evergreen browsers require these. **/ // Used for reflect-metadata in JIT. If you use AOT (and only Angular decorators), you can remove. import 'core-js/es7/reflect'; /** * Web Animations `@angular/platform-browser/animations` * Only required if AnimationBuilder is used within the application and using IE/Edge or Safari. * Standard animation support in Angular DOES NOT require any polyfills (as of Angular 6.0). **/ // import 'web-animations-js'; // Run `npm install --save web-animations-js`. /** * By default, zone.js will patch all possible macroTask and DomEvents * user can disable parts of macroTask/DomEvents patch by setting following flags */ // (window as any).__Zone_disable_requestAnimationFrame = true; // disable patch requestAnimationFrame // (window as any).__Zone_disable_on_property = true; // disable patch onProperty such as onclick // (window as any).__zone_symbol__BLACK_LISTED_EVENTS = ['scroll', 'mousemove']; // disable patch specified eventNames /* * in IE/Edge developer tools, the addEventListener will also be wrapped by zone.js * with the following flag, it will bypass `zone.js` patch for IE/Edge */ // (window as any).__Zone_enable_cross_context_check = true; /*************************************************************************************************** * Zone JS is required by default for Angular itself. */ import 'zone.js/dist/zone'; // Included with Angular CLI. /*************************************************************************************************** * APPLICATION IMPORTS */ import 'babel-polyfill';
