为div id生成随机字符串 [英] generate random string for div id

问题描述

我想在我的网站上显示YouTube视频，但我需要为每个将由用户共享的视频添加唯一的 id 。所以我把它放在一起，我遇到了一个小问题。我试图让JavaScript为div id 添加一个随机字符串，但它不起作用，显示字符串：

I want to display YouTube videos on my website, but I need to be able to add a unique id for each video that's going to be shared by users. So I put this together, and I have run into a little problem. I am trying to get the JavaScript to add a random string for the div id, but it's not working, showing the string:

<script type='text/javascript' src='jwplayer.js'></script>
<script type='text/javascript'>
function randomString(length) {
    var chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz'.split('');

    if (! length) {
        length = Math.floor(Math.random() * chars.length);
    }

    var str = '';
    for (var i = 0; i < length; i++) {
        str += chars[Math.floor(Math.random() * chars.length)];
    }
    return str;
}

var div = randomString(8);
</script>

<div id='div()'>This text will be replaced</div>

<script type='text/javascript'>
  jwplayer('div()').setup({
    'flashplayer': 'player.swf',
    'file': 'http://www.youtube.com/watch?v=4AX0bi9GXXY',
    'controlbar': 'bottom',
    'width': '470',
    'height': '320'
  });
</script>

推荐答案

我真的很喜欢这个功能：

I really like this function:

function guidGenerator() {
    var S4 = function() {
       return (((1+Math.random())*0x10000)|0).toString(16).substring(1);
    };
    return (S4()+S4()+"-"+S4()+"-"+S4()+"-"+S4()+"-"+S4()+S4()+S4());
}

来自在JavaScript中创建GUID / UUID？

这篇关于为div id生成随机字符串的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！