Angular8 ie兼容性解决

启用腻子脚本 polyfills.ts

/* 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';
import 'core-js/es7/array';
/** 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';
/** IE10 and IE11 requires the following for NgClass support on SVG elements */
import 'classlist.js'; // Run `npm install --save classlist.js`.
/**
 * 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`.
import 'zone.js/dist/zone'; // Included with Angular CLI.
// This polyfill adds compatibility to all Browsers supporting ES5:
if ((window as any).NodeList && !NodeList.prototype.forEach) {
  NodeList.prototype.forEach = function(callback, thisArg) {
    thisArg = thisArg || window;
    for (let i = 0; i < this.length; i++) {
      callback.call(thisArg, this[i], i, this);
    }
  };
}
// 解决ie下报错 对象不支持matches
if (!Element.prototype.matches) {
  Element.prototype.matches =
    (Element.prototype as any).matchesSelector ||
    (Element.prototype as any).mozMatchesSelector ||
    (Element.prototype as any).msMatchesSelector ||
    (Element.prototype as any).oMatchesSelector ||
    Element.prototype.webkitMatchesSelector ||
    function(s) {
      const matches = (this.document || this.ownerDocument).querySelectorAll(s);
      let i = matches.length;
      while (--i >= 0 && matches.item(i) !== this) {}
      return i > -1;
    };
}