Question

我正在制作一个解析json文件以获得dnd信息的程序。我已经完成了该程序，但是，如果不手动提供数千个唯一的ID，就无法弄清楚如何为各种攻击定义重复的密钥。

我的JSON文件的一部分：

{
  "special_abilities": [
    {
      "name": "Legendary Resistance (3/Day)",
      "desc": "If the tarrasque fails a saving throw, it can choose to succeed instead.",
      "attack_bonus": 0
    },
    {
      "name": "Magic Resistance",
      "desc": "The tarrasque has advantage on saving throws against spells and other magical effects.",
      "attack_bonus": 0
    },
    {
      "name": "Reflective Carapace",
      "desc": "Any time the tarrasque is targeted by a magic missile spell, a line spell, or a spell that requires a ranged attack roll, roll a d6. On a 1 to 5, the tarrasque is unaffected. On a 6, the tarrasque is unaffected, and the effect is reflected back at the caster as though it originated from the tarrasque, turning the caster into the target.",
      "attack_bonus": 0
    },
    {
      "name": "Siege Monster",
      "desc": "The tarrasque deals double damage to objects and structures.",
      "attack_bonus": 0
    }
  ]
}

那么，我将如何定义每个name键？如果我可以定义在那里发布的内容为searchFile.special_abilities，该如何定义searchFile.special_abilities.name？

Answer 1

您的JSON有效。您将像这样访问已解析的JSON数据：

const searchFile = JSON.parse(jsonVarName)

const index = 2 // or whatever index you want

const name = searchFile.special_abilities[index].name

您还可以使用各种array methods对数据进行各种有趣的操作，例如按名称搜索：

const siegeMonster = searchFile.special_abilities.find(ability => ability.name === 'Siege Monster')

Answer 2

我建议改用数组对象，按名称索引，这样就不会重复名称，也不需要单独的唯一标识符。例如：

"special_abilities": {
  "Some Name": [
    {
      "desc": "Description 1",
      "attack_bonus": 0
    },
    {
      "desc": "Description 2",
      "attack_bonus": 5
    }
  ],
  "Some Other Name": [
    {
      "desc": "Some Other Description",
      "attack_bonus": 2
    }
  ]
}

然后，您可以访问special_abilities['Some name']来访问数组，并遍历数组以查找所需的内容。（使用Object.entries一次获取键和值，例如Object.entries(special_abilities).forEach(([name, arr]) => { ...）

如何在json数组中定义重复键？

2 个答案: