javascript - 检测有关音频/视频play()命令的当前上下文

Question

因此，当我们尝试使用myVideoElement.play()时，会在控制台中收到此错误:Uncaught (in promise) DOMException: The play method is not allowed by the user agent or the platform in the current context, possibly because the user denied permission.JavaScript是否可以检测或测试我们所处的上下文以防止例如调用play()？我不希望在控制台中显示警告或错误消息。

Answer 1

如果您担心控制台中的错误，则可以捕获该错误。

async function yourFunction()
{
     try
     {
           await myVideoElement.play();
           // if the script reaches here, it succeeded
           console.log("success");
     }
     catch(error)
     {
           // if it failed it will come here, but will not put an error in the console,
           // so you can handle it however you want or just ignore it and nothing will happen
     }
}

yourFunction()

查看更多: https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/play