Angular 4-新的Mouseevent导致IE11错误



我在IE11上的Angular 4中有鼠标效果问题。我使用的是Angular 4,Angular-Cli。

当我激活这条代码时:

let newEvent = new MouseEvent('mouseleave', {bubbles: true});

IE在控制台上抛出这样的例外:

TypeError: Object does not support this operation.
   at MenuItemComponent.prototype.onClick (./main.bundle.js:821:13)
   at Anonymous function (Function code:37:9)
   at handleEvent (./vendor.bundle.js:12039:87)
   at callWithDebugContext (./vendor.bundle.js:13247:9)
   at debugHandleEvent (./vendor.bundle.js:12835:5)
   at dispatchEvent (./vendor.bundle.js:9014:5)
   at Anonymous function (./vendor.bundle.js:9604:31)
   at Anonymous function (./vendor.bundle.js:19253:9)
   at ZoneDelegate.prototype.invokeTask (./polyfills.bundle.js:10732:13)
   at onInvokeTask (./vendor.bundle.js:4357:21)
   at ZoneDelegate.prototype.invokeTask (./polyfills.bundle.js:10732:13)
   at Zone.prototype.runTask (./polyfills.bundle.js:10501:21)
   at invoke (./polyfills.bundle.js:10796:21)

我在我的polyfils.ts和重建项目中没有服用所有内容,我尝试了IE和ES6垫片...

我在Google中找不到类似的东西,我认为这是一个愚蠢的问题 - 云有人请我指出解决方案?

html文件中尝试:

<div #sample>You need to click me</div>

在component.js文件中:

@ViewChild('sample') sampleEle: ElementRef;

和使用js中的单击事件为:

this.sampleEle.nativeElement.click();

您可以为IE欺骗:

import {component,oninit,elementref,viewchild}来自'@angular/core';

...

@viewchild('fileInput'(public fileinput:elementref;

...

// Trigger button click event
let event;
if (document.createEvent){
  // Only for IE and Firefox
  event = document.createEvent('MouseEvent');
  event.initMouseEvent('click', true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
} else {
  // For Chrome
  event = new MouseEvent('click', {bubbles: false});
}
this.button.nativeElement.dispatchEvent(event);

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