javascript - json按中文名字分成N个数组

Question

var json = [
  {"name":"小飞","type":2},
  {"name":"小飞","type":4},
  {"name":"小小飞","type":2},
  {"name":"小小飞","type":3}，
  {"name":"小飞","type":3}
  ....
];

---

var json = [
  {"name":"小飞","type": [2,3,4]},
  {"name":"小小飞","type":[2,3]}
   ...
]; 

*json的个数是未知

Answer 1

var json = [
  {"name":"小飞","type":2},
  {"name":"小飞","type":4},
  {"name":"小小飞","type":2},
  {"name":"小小飞","type":3},
  {"name":"小飞","type":3}
];

var type = {};
json.forEach(function(item){
    if (typeof type[item.name] == 'undefined')
        type[item.name] = [];

    type[item.name].push(item.type);
});

var json = [];
Object.keys(type).forEach(function(key){
    json.push({name: key, type: type[key]});
});