userscript - pause playback

// userscript parts to pause playback in all open tabs, save for the current one. 

// handles http video and audio tags, this will pause what is playing. 
// Swap pause() to play() to reverse. Other controls:
// .volume (goes on interval from 0-1.0)
// .muted (bool)

['video','audio'].forEach((tag)=>{                                            
    player = document.getElementsByTagName(tag)
    if(!![...player].find((e)=>e && !(e.paused && e.ended && e.muted))){
        player[0].pause() 
    }    
})

// storage - session/localStorage for same domain, else GM_setValue