Function supportsOnClick

packages/zone.js/test/browser/element.spec.ts:255–264

()

  describe('onclick', function () {
    function supportsOnClick() {
      const div = document.createElement('div');
      const clickPropDesc = Object.getOwnPropertyDescriptor(div, 'onclick');
      return !(
        EventTarget &&
        div instanceof EventTarget &&
        clickPropDesc &&
        clickPropDesc.value === null
      );
    }
    (<any>supportsOnClick).message = 'Supports Element#onclick patching';

    ifEnvSupports(supportsOnClick, function () {