相关疑难解决方法(0)

我正在使用Typescript作为需要使用JavaScript全屏API的Web应用程序.全屏API尚未得到官方支持,因此您必须使用供应商前缀.这是我的代码,基于MDN的示例:

function toggleFullScreen(element: JQuery) {
    var fs = element[0];
    if (!document.fullscreenElement &&    // alternative standard method
        !document.mozFullScreenElement && !document.webkitFullscreenElement && !document.msFullscreenElement) {  // current working methods
        if (fs.requestFullscreen) {
            fs.requestFullscreen();
        } else if (fs.msRequestFullscreen) {
            fs.msRequestFullscreen();
        } else if (fs.mozRequestFullScreen) {
            fs.mozRequestFullScreen();
        } else if (fs.webkitRequestFullscreen) {
            fs.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
        }
    } else {
        if (document.exitFullscreen) {
            document.exitFullscreen();
        } else if (document.msExitFullscreen) {
            document.msExitFullscreen();
        } else if (document.mozCancelFullScreen) {
            document.mozCancelFullScreen();
        } else if (document.webkitExitFullscreen) {
            document.webkitExitFullscreen();
        }
    }
}

但是在我的IDE(Visual …

我正在Angular 2/Angular 4上构建一个新项目,我需要在我的应用程序上使用Enter FullScreen Button.

我正在搜索,我找到了代码:

  toggleFullScreen() {
    if (!document.fullscreenElement &&    // alternative standard method
        !document.mozFullScreenElement && !document.webkitFullscreenElement && !document.msFullscreenElement )
        {  // current working methods
      if (document.documentElement.requestFullscreen) {
        document.documentElement.requestFullscreen();
      } else if (document.documentElement.msRequestFullscreen) {
        document.documentElement.msRequestFullscreen();
      } else if (document.documentElement.mozRequestFullScreen) {
        document.documentElement.mozRequestFullScreen();
      } else if (document.documentElement.webkitRequestFullscreen) {
        document.documentElement.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
      }
    } else {
      if (document.exitFullscreen) {
        document.exitFullscreen();
      } else if (document.msExitFullscreen) {
        document.msExitFullscreen();
      } else if (document.mozCancelFullScreen) {
        document.mozCancelFullScreen();
      } else if (document.webkitExitFullscreen) {
        document.webkitExitFullscreen();
      }
    }
  }

当我使用"ng serve"编译应用程序时,FullScreen Button工作,但它给了我以下错误: …