js生成64位hash码
2021-10-20 10:40:53

 1 getUuidCode(){
 2 //64长度
 3   var len=64;  
 4 //16进制   
 5   var radix=16;   
 6   var chars='0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split('');
 7   var uuid=[],i;
 8   radix=radix||chars.length;
 9   if(len){
10   for(i=0;i<len;i++)
11   uuid[i]=chars[0|Math.random()*radix];
12   }else{
13      var r;
14      uuid[8]=uuid[13]=uuid[18]=uuid[23]='-';
15      uuid[14]='4';
16      for(i=0;i<36;i++){
17      if(!uuid[i]){
18        r=0|Math.random()*16;
19        uuid[i]=chars[(i==19)?(r&0x3)|0x8:r];
20        }}}
21      return uuid.join('');
22 },