Don't you think this might be a flawlles solution to Check if Audio() is playing?

问题

Do you think this might be a flawlles solution to Check if Audio() is playing? Like when handling a stratup theme ...

Place this above in the head

songStarted = false;
song = new Audio();
song.src = 'audio/startuptheme.mp3';    
song.addEventListener('playing', (event) => {songStarted = true;}); 
song.play(); 

And use the following script anywhere (where first user interaction should happen), as many times as you need

if (!songStarted){   
      if (typeof song == 'undefined'){
          song = new Audio();
          song.src = 'audio/startuptheme.mp3';  
      }
      song.addEventListener('playing', (event) => {songStarted = true;}); 
      song.play(); 
} 

I dont think any one can come with a better solution, unless it's an equally flawless solution without the use of globals vars.

来源：https://stackoverflow.com/questions/61407319/dont-you-think-this-might-be-a-flawlles-solution-to-check-if-audio-is-playing