JS除开重复数据

JS去除重复数据

 <script language="JavaScript">  <!--Array.prototype.distinct = function(field) {    var set = {},      hasField = typeof(field)!='undefined';    for(var i=this.length-1; i>=0; i--){      var obj = this[i],        cacheKey = hasField ? obj[field] : obj;      if(cacheKey in set){        this.splice(i, 1);        continue;      }else{        set[cacheKey] = null;      }    }  }    //test  var a = [{id:1, name:'aaa'}, {id:2, name:'bbb'}, {id:1, name:'ccc'}];  a.distinct('id');    var b = [1,2,3,'a','b',2,'b',3];  b.distinct();    alert(a);  alert(b);  //-->  </script>

说明：此实例数组类型为
var values =new Object();
values.id= getValues[i].id;
values.text= getValues[i].text;
values.checked="1";

所以：判断条件为  if (this[i].id === this[j].id)
如果数据类型为
var s = [1,2,3····n];
则，修改为
if (this[i] === this[j])
即可！

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