隨機數組項目並設置爲嵌入SRC

我試圖創建一個播放隨機歌曲的音樂播放器，通過從數組中選擇一個隨機項並通過串聯將其設置爲embed的src。隨機數組項目並設置爲嵌入SRC

<script type="text/javascript"> 
    //Playlist 
    var musicArray = ['b.mp3', 'b2.mp3', 'b3.mp3']; 
    //src vars 
    var first = 'niftyplayer.swf?file='; 
    var last = '&as=1'; 
    // Shuffle 
    var mid = musicArray[Math.floor(Math.random() * myArray.length)]; 
    //Set src 
    getElementById("embed").src='first+mid+last'; 
    getElementById("param").value='first+mid+last'; 
</script> 
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0, 0" width="165" height="38" id="niftyPlayer1" align=""> 
    <param id="param" name=movie value=""> 
    <param name=quality value=high> 
    <param name=bgcolor value=#FFFFFF> 
    <embed id="embed" src="" quality=high bgcolor=#FFFFFF width="165" height="38" name="niftyPlayer1" align="" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer"> 
    </embed> 
</object> 
<script type="text/javascript" language="javascript" src="niftyplayer.js"></script>

但是，我的腳本不起作用。

JSFiddle of niftyplayer.js

來源

2013-12-19 William Offied

如果您手動將src嵌入到嵌入中，它工作嗎？不使用javascript –

1.移除'first + mid + last'周圍的單引號2.你試圖設置js執行時未加載的DOM對象的屬性 –

在這種情況下，HTML後負載的js刪除報價。然後，修復你的'嵌入'和'參數'。

- 下面的代碼。

<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0, 0" width="165" height="38" id="niftyPlayer1" align=""> 
    <param id="param" name=movie value=""> 
    <param name=quality value=high> 
    <param name=bgcolor value=#FFFFFF> 
    <embed id="embed" src="" quality=high bgcolor=#FFFFFF width="165" height="38" name="niftyPlayer1" align="" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer"> 
    </embed> 
</object> 
<script type="text/javascript" language="javascript" src="niftyplayer.js"></script> 

    <script type="text/javascript"> 
    //Playlist 
    var musicArray = ['b.mp3', 'b2.mp3', 'b3.mp3']; 
    //src vars 
    var first = 'niftyplayer.swf?file='; 
    var last = '&as=1'; 
    // Shuffle 
    var mid = musicArray[Math.floor(Math.random() * myArray.length)]; 
    //Set src 
    getElementById("embed").src = first + mid + last; 
    getElementById("param").value = first + mid + last; 
</script>

來源

2013-12-19 02:03:14 Jeff

將JavaScript代碼的HTML後，並從下面線'first+mid+last'

getElementById("embed").src= first+mid+last; 
    getElementById("param").value= first+mid+last;

來源

2013-12-19 02:00:16

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