How to use a javascript to autoplay a html5 audio

问题:

I saw this deface from anonymous, so I want to add a hidden chiptune song when playing the game, but got kinda lost.

<script type="text/javascript" src="http://www.ussc.gov/include/js/konami.js"></script>
<script type="text/javascript">
  var success = function() {
                document.body.style.backgroundImage = "url(http://3.bp.blogspot.com/-vKs53Qq5mBI/T9vCsCb-irI/AAAAAAAAB8U/CZsS0iY5RjY/s1600/14685_1_other_wallpapers_anonymous.jpg)";
                document.body.style.backgroundSize = "100%";
                if(window.KICKASSGAME){window.KICKASSGAME.menuManager.menu.messageTypeChangeShip('242,0');
                                       window.KICKASSGAME.menuManager.destroy()}else{
    alert("AntiSec CAEK-mode activated... Destroy the system! Controls: up, down, left, right, space to fire.");
                var KICKASSVERSION='2.0';
                var s = document.createElement('script');
                s.type='text/javascript';document.body.appendChild(s);
                s.src='//hi.kickassapp.com/kickass.js';
                void(0);}
  }

  var konami = new Konami(success);

</script> 

回答1:

play is the method you are looking for

var audioElement = document.createElement('audio');
audioElement.setAttribute('src', 'YourSong.ogg');
audioElement.load()
audioElement.addEventListener("load", function() { 
  audioElement.play(); 
}, true);

回答2:

Check this out.. It may help you..!

function play_sound(url){
    if(play_html5_audio){
        var snd = new Audio(url);
        //code
        snd.play();
    }else{          
        var sound = $("<embed id='sound' type='audio/mpeg' />");
        //code
        $('body').append(sound);
    }
}

play_sound('beep.mp3');

Source Code found @ Automatically playing audio with HTML5 and Javascript