我尝试比较、查找和推送数组内的数据。但出现以下错误

Error => TypeError: undefined is not an object (evaluating 'data[index].push')

我有以下 JSON/Array

[
  {
     "category":"Super",
     "id":"1",
     "images":[],
     "status":"open",
     "url":"some url here"
  },
  {
     "category":"Pizza",
     "entitlement_id":"pizza_pack_ent",
     "id":"2",
     "images":[],
     "package_id":"pizza_pack_single",
     "status":"locked",
     "url":"some url here"
  }
]

我想将 packages 对象推送到匹配类别内，因此 json/array 将如下所示

[
  {
     "category":"Super",
     "id":"1",
     "images":[],
     "status":"open",
     "url":"some url here"
  },
  {
     "category":"Pizza",
     "entitlement_id":"pizza_pack_ent",
     "id":"2",
     "images":[],
     "package_id":"pizza_pack_single",
     "status":"locked",
     "url":"some url here",
     "packages": [
         {
           "id":"abcds"
         },
         {
            "id": "xyz"
         }
      ]
  }
]

以下是我尝试执行的代码：

data.forEach((category, index) => { //data is main json/array in which I want to push packages
       packages.forEach((pckg, idx) => {
            if(pckg.identifier === category.package_id){
              // data[category].push(pckg); //not worked
              data[index].push(pckg); //not worked either
            }
                
        })
 })
 console.log(data);