Optionally set an audio file that should be played when the timer has expired. Please note that when starting the timer automatically, the browser may prevent playing the signal unless the user has interacted with the page first.
Optionally set an audio file that should be played when the timer has expired. Please note that when starting the timer automatically, the browser may prevent playing the signal unless the user has interacted with the page first.
:可以设置一个音频文件,当计时器到期时播放该地设置计时器过期时应该播放的音频文件。请注意,当自动启动计时器时,除非用户先与页面交互,否则浏览器可能会阻止播放信号浏览器可能会阻止播放信号,除非用户首先与页面进行交互。