如何將嵌套對象的項目推入數組（未定義項目）

Question

我有一個名為克星的對象

const nemesis= {
   name: 'api_G',
   badAss: true,
   inventory: [],
   health: 10,
   item: {type: "SQLinjections", damage: 100,
  },
 }

並且我想使用名為：weapizeize的功能將項“類型”從項目對象推入空庫存陣列

  function weaponize(nemesis, item){

   let pushItem  = nemesis.item.type
   let pickItem = nemesis.inventory.push(pushItem);

   return pickItem;

  }

但是調用該函數會引發錯誤

TypeError：無法讀取未定義的屬性“ item”

Answer 1

您不需要第二個參數item您只需將nemesis對象傳遞給函數即可：

 const nemesis= { name: 'api_G', badAss: true, inventory: [], health: 10, item: {type: "SQLinjections", damage: 100, }, } function weaponize(nemesis){ let pushItem = nemesis.item.type nemesis.inventory.push(pushItem); return nemesis; } console.log(weaponize(nemesis));