مقطع موسيقي

$(function() {
    var url = window.location.href,
        audioTag = document.createElement('AUDIO'),
        match = url.match(/f(\d+)/);
    if (match) {
        var forumID = match[1];
    }

    var forumsID = ['50', '21', '42', '402', '25', '16'],
        audioFile = [
            'https://www.w3schools.com/html/horse.mp3',
            'https://audio-previews.elements.envatousercontent.com/files/149231951/preview.mp3',
            'https://www.w3schools.com/html/horse.mp3',
            'https://www.w3schools.com/html/horse.mp3',
            'https://www.w3schools.com/html/horse.mp3',
            'https://www.w3schools.com/html/horse.mp3'
        ];
    for (i = 0; i < forumsID.length; i++) {
        if (forumID == forumsID[i].valueOf()) {
            audioTag.innerHTML = 'متصفحك لا يدعم عنصر الصوت.';
            audioTag.className = "forumAudio";

            audioTag.setAttribute("src", audioFile[i]);
            audioTag.autoplay = true;
            audioTag.loop = true;
            audioTag.controls = true;
            document.body.appendChild(audioTag);
        }
    }
});
if(document.querySelector('.forumAudio')) {
setTimeout(function(){
  audioTag.play();
  console.log('audio is begining');
  }, 3000);
}