JS生成UUID的方法实例
2017-08-02 17:22
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<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>用JS生成UUID的方法实例</title> <script src="jquery.v2.2.2.min.js"></script> <script> var id = getUuid(); $(document).ready(function() { $("p").click(function() { alert(id); }); }); function getUuid() { var len = 32;//32长度 var radix = 16;//16进制 var chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split(''); var uuid = [], i; radix = radix || chars.length; if(len) { for(i = 0; i < len; i++)uuid[i] = chars[0 | Math.random() * radix]; } else { var r; uuid[8] = uuid[13] = uuid[18] = uuid[23] = '-'; uuid[14] = '4'; for(i = 0; i < 36; i++) { if(!uuid[i]) { r = 0 | Math.random() * 16; uuid[i] = chars[(i == 19) ? (r & 0x3) | 0x8 : r]; } } } return uuid.join(''); } </script> </head> <body> <p>点我,生成UUID。</p> </body> </html>