javascript - 我无法找到此代码的解决方案这些是问题

Question

• 编写一个函数，以 pokemon 的名称为参数并显示 pokemon 的信息
• 编写一个函数，将 pokemon 的名称作为参数，并找出所有 pokemon 在其“next_evolution”字段中具有该名称的所有 pokemon。
• 编写一个函数，将“弱点”作为输入，并给出所有具有该弱点的口袋妖怪的名称。（检查数据集中的弱点数组）。

它没有显示任何错误，也没有找到解决方案......我需要帮助来解决这个问题，我是初学者，所以详细的逻辑或代码会有所帮助

var goPokemon = {
  "pokemon": [{
    "id": 1,
    "num": "001",
    "name": "Bulbasaur",
    "img": "http://www.serebii.net/pokemongo/pokemon/001.png",
    "type": [
      "Grass",
      "Poison"
    ],
    "height": "0.71 m",
    "weight": "6.9 kg",
    "candy": "Bulbasaur Candy",
    "candy_count": 25,
    "egg": "2 km",
    "spawn_chance": 0.69,
    "avg_spawns": 69,
    "spawn_time": "20:00",
    "multipliers": [1.58],
    "weaknesses": [
      "Fire",
      "Ice",
      "Flying",
      "Psychic"
    ],
    "next_evolution": [{
      "num": "002",
      "name": "Ivysaur"
    }, {
      "num": "003",
      "name": "Venusaur"
    }]
  }, {
    "id": 2,
    "num": "002",
    "name": "Ivysaur",
    "img": "http://www.serebii.net/pokemongo/pokemon/002.png",
    "type": [
      "Grass",
      "Poison"
    ],
    "height": "0.99 m",
    "weight": "13.0 kg",
    "candy": "Bulbasaur Candy",
    "candy_count": 100,
    "egg": "Not in Eggs",
    "spawn_chance": 0.042,
    "avg_spawns": 4.2,
    "spawn_time": "07:00",
    "multipliers": [
      1.2,
      1.6
    ],
    "weaknesses": [
      "Fire",
      "Ice",
      "Flying",
      "Psychic"
    ],
    "prev_evolution": [{
      "num": "001",
      "name": "Bulbasaur"
    }],
    "next_evolution": [{
      "num": "003",
      "name": "Venusaur"
    }]
  }, {
    "id": 3,
    "num": "003",
    "name": "Venusaur",
    "img": "http://www.serebii.net/pokemongo/pokemon/003.png",
    "type": [
      "Grass",
      "Poison"
    ],
    "height": "2.01 m",
    "weight": "100.0 kg",
    "candy": "Bulbasaur Candy",
    "egg": "Not in Eggs",
    "spawn_chance": 0.017,
    "avg_spawns": 1.7,
    "spawn_time": "11:30",
    "multipliers": null,
    "weaknesses": [
      "Fire",
      "Ice",
      "Flying",
      "Psychic"
    ],
    "prev_evolution": [{
      "num": "001",
      "name": "Bulbasaur"
    }, {
      "num": "002",
      "name": "Ivysaur"
    }]
  }]
}


var DetailOfPokemon = function(name, goPokemon) {

  for (var x in goPokemon.pokemon) {
    if (goPokemon.pokemon[x].name == findname) {
      var Detail = goPokemon.pokemon[x];
      alert(Detail);
    } else {}
  }

  var findname = window.prompt('Enter the name of Pokemon')

};
DetailOfPokemon(name, goPokemon)

标签： javascriptjsonfunction

Answer 1

var findname = window.prompt('Enter the name of Pokemon')位置不好。你比较goPokemon.pokemon[x].name和findname尚未findname定义。

JSON.stringify()函数会将对象转换为 json 字符串（可能更容易显示信息）。

顺便说一句，如果您不需要else指令，请不要编写它。

var goPokemon = {
  "pokemon": [{
    "id": 1,
    "num": "001",
    "name": "Bulbasaur",
    "img": "http://www.serebii.net/pokemongo/pokemon/001.png",
    "type": [
      "Grass",
      "Poison"
    ],
    "height": "0.71 m",
    "weight": "6.9 kg",
    "candy": "Bulbasaur Candy",
    "candy_count": 25,
    "egg": "2 km",
    "spawn_chance": 0.69,
    "avg_spawns": 69,
    "spawn_time": "20:00",
    "multipliers": [1.58],
    "weaknesses": [
      "Fire",
      "Ice",
      "Flying",
      "Psychic"
    ],
    "next_evolution": [{
      "num": "002",
      "name": "Ivysaur"
    }, {
      "num": "003",
      "name": "Venusaur"
    }]
  }, {
    "id": 2,
    "num": "002",
    "name": "Ivysaur",
    "img": "http://www.serebii.net/pokemongo/pokemon/002.png",
    "type": [
      "Grass",
      "Poison"
    ],
    "height": "0.99 m",
    "weight": "13.0 kg",
    "candy": "Bulbasaur Candy",
    "candy_count": 100,
    "egg": "Not in Eggs",
    "spawn_chance": 0.042,
    "avg_spawns": 4.2,
    "spawn_time": "07:00",
    "multipliers": [
      1.2,
      1.6
    ],
    "weaknesses": [
      "Fire",
      "Ice",
      "Flying",
      "Psychic"
    ],
    "prev_evolution": [{
      "num": "001",
      "name": "Bulbasaur"
    }],
    "next_evolution": [{
      "num": "003",
      "name": "Venusaur"
    }]
  }, {
    "id": 3,
    "num": "003",
    "name": "Venusaur",
    "img": "http://www.serebii.net/pokemongo/pokemon/003.png",
    "type": [
      "Grass",
      "Poison"
    ],
    "height": "2.01 m",
    "weight": "100.0 kg",
    "candy": "Bulbasaur Candy",
    "egg": "Not in Eggs",
    "spawn_chance": 0.017,
    "avg_spawns": 1.7,
    "spawn_time": "11:30",
    "multipliers": null,
    "weaknesses": [
      "Fire",
      "Ice",
      "Flying",
      "Psychic"
    ],
    "prev_evolution": [{
      "num": "001",
      "name": "Bulbasaur"
    }, {
      "num": "002",
      "name": "Ivysaur"
    }]
  }]
}






var DetailOfPokemon = function(findname, goPokemon) {
    for (var x in goPokemon.pokemon) 
    { 
        if (goPokemon.pokemon[x].name == findname)
        {
            var Detail = goPokemon.pokemon[x];
            alert(JSON.stringify(Detail, null, 4));
        }
    }  
};
var name = window.prompt('Enter the name of Pokemon')
DetailOfPokemon(name, goPokemon)