javascript - 如果存在于另一个对象数组中，则从对象数组中的数组中删除元素

Question

我正在处理大量对象。我已将我的数据结构简化为以下内容。每个对象都有一个 id，每个 id 都有两个与之关联的数组 type1 和 type2。

const arr = [{id: "12345", type1: ["Hat 1", "Hat 3"], type2: ["Hat 2", "Glove 4"]}, 
             {id: "12345", type1: ["Glove 1", "Hat 1"], type2: ["Glove 3", "Hat 2"]},           
             {id: "54321", type1: ["Jacket 1", "Hat 4"], type2: ["Hat 3", "Hat 4"]},
             {id: "54321", type1: ["Glove 2", "Hat 2"], type2: ["Glove 3", "Jacket 4"]},
             {id: "13579", type1: ["Hat 1", "Hat 2"], type2: ["Hat 3", "Hat 4"]},
             {id: "13579", type1: ["Glove 1", "Glove 2"], type2: ["Glove 3", "Glove 4"]}]

我有一个“查找”对象数组。每个对象都有一个 id 和一个 title

const lookup = [{id: "12345", title: "Hat 1"},
                {id: "12345", title: "Hat 2"},
                {id: "12345", title: "Glove 3"},
                {id: "54321", title: "Hat 3"} 
                {id: "54321", title: "Jacket 4"},
                {id: "54321", title: "Glove 5"},
                {id: "13579", title: "Hat 2"},
                {id: "13579", title: "Jacket 3"}]

我需要为任何具有 title 的匹配 ID 使用“查找”对象 我需要将其从 type1 或 type2 或两者中删除。所以我得到的对象数组看起来像这样

const result = [{id: "12345", type1: ["Hat 3"], type2: ["Glove 4"]}, 
                {id: "12345", type1: ["Glove 1"], type2: []},           
                {id: "54321", type1: ["Jacket 1", "Hat 4"], type2: ["Hat 4"]},
                {id: "54321", type1: ["Glove 2", "Hat 2"], type2: ["Glove 3"]},
                {id: "13579", type1: ["Hat 1"], type2: ["Hat 3", "Hat 4"]},
                {id: "13579", type1: ["Glove 1", "Glove 2"], type2: ["Glove 3", "Glove 4"]}]

重复项以及必须在两个数组中搜索任何匹配的 ID 令我感到困惑。有没有一种简单的方法可以做到这一点，或者有更好的方法来构建数据以便它不那么复杂？

Answer 1

循环遍历arr，对于arr的每一个条目，循环遍历lookup比较和修改arr

  for(let arrEntry of arr) {
    let id = arrEntry.id;
    let type1 = arrEntry.type1;
    let type2 = arrEntry.type2;

    for(let lookupEntry of lookup) {
      let title = lookupEntry.title;
      if(lookupEntry.id === id && type1.includes(title)) {
        type1.splice(type1.indexOf(title), 1);
      }
      if(lookupEntry.id === id && type2.includes(title)) {
        type2.splice(type2.indexOf(title), 1);
      }
    }
  }

  console.log(arr)