JSON数组去重

/*
 * JSON数组去重
 * @param: [array] json Array
 * @param: [string] 唯一的key名，根据此键名进行去重
 */
function uniqueArray(array, key,mergekey){
   var result = [array[0]];
   for(var i = 1; i < array.length; i++){
      var item = array[i];
      var repeat = false;
      for (var j = 0; j < result.length; j++) {
         if (item[key] == result[j][key]) {
            repeat = true;
            result[j][mergekey]=result[j][mergekey]+','+item[mergekey];
            break;
         }
      }
      if (!repeat) {
         result.push(item);
      }
   }
   //console.log(result);
   return result;


}