删除数组中重复项（uniq）

 

代码

TUI.unique = function( array ) {
 var ret = [], record = {}, it, tmp;
 var type = {
 “number”: function(n){ return “_TUI_num” + n; },
 “string”: function(n){ return n; },
 “boolean”: function(n){ return “_TUI_boolean” + n; },
 “object”: function(n){ return n === null ? “TUI_null” : $.data(n); },
 “undefined”: function(n){ return “_TUI_undefined”; }
 };
 for ( var i = 0, length = array.length; i < length; i++ ) {
 it = tmp = array[i];
 tmp = type[typeof it](it);
 if( !record[tmp] ) {
 ret.push(it);
 record[tmp] = true;
 }
 }
 return ret;
 };
 
 测试：
 
 var b=[1,3,5];
 TUI.unique([1,3,4,5,null,false,$(".pack")[0],b,"ab","cc",[1,3],3,6,b,1,false,null,"null","","false","",$(".pack")[0],"cc"])
//--------------------------------------

var uniq = function (arr) {
     var a = [],
         o = {},
         i,
         v,
         len = arr.length;
 
     if (len < 2) {
         return arr;
     }
 
     for (i = 0; i < len; i++) {
         v = arr[i];
         if (o[v] !== 1) {
             a.push(v);
             o[v] = 1;
         }
     }
 
     return a;
 }