从json数据中删除重复值

Question

我有一个像这样的json数据:

{
  "_id": ObjectId("5306e7fd80b1027ad2653db4"),
  "testada": "ecom",
  "id": "27" 

} {
  "_id": ObjectId("5306e81880b1027ad2653db5"),
  "testada": "alorta",
  "id": "27" 
} {
  "_id": ObjectId("5306e81880b1027ad2653db6"),
  "testada": "france24",
  "id": "23" 
}
{
  "_id": ObjectId("5306e81880b1027ad2653db6"),
  "testada": "seloger",
  "id": "23" 
}

从这里我必须删除一个重复的条目id:27,与id:23 我的结果json看起来相同如下:

{
  "_id": ObjectId("5306e81880b1027ad2653db5"),
  "testada": "alorta",
  "id": "27" 
} {
  "_id": ObjectId("5306e81880b1027ad2653db6"),
  "testada": "france24",
  "id": "23" 
}

怎么可能

Answer 1

Fiddle Demo

var arr = [], //to collect id values 
    collection = []; //collect unique object

$.each(json_all, function (index, value) {
    if ($.inArray(value.id, arr) == -1) { //check if id value not exits than add it
        arr.push(value.id);//push id value in arr
        collection.push(value); //put object in collection to access it's all values
    }
});
console.log(collection); //you can access it values like collection[index].keyName
console.log(arr);