Play and Pause YouTube from JXA

playpause-youtube.js

var chrome = Application("Google Chrome");

var windows = chrome.windows;

for(i = 0; i < windows.length; i++){
  var tabs = windows[i].tabs;
  for(j = 0; j < tabs.length; j++){
    var url = tabs[j].url();
    if(url.match(/youtube.com/)){
      tabs[j].execute({ javascript: "document.querySelector('.ytp-play-button').click();" });
    }
  }
}