js 去重 字符串 [123123,123123,345435,33467,45645,343467,879,45645]

     function unique(dislodgeArr) {
       var ret = []
       var hash = {}
       var datasource = new Array();
       var array= dislodgeArr.split(',')
       if(array.length > 0){
           for(var d in array){
              var item = array[d];
              datasource.push(item)
                }

       }
      for (var i = 0; i < datasource.length; i++) {
        var item = datasource[i]
        var key = typeof(item) + item
        if (hash[key] !== 1) {
          ret.push(item)
          hash[key] = 1
        }
      }

     return ret
    }

修改的