JSR如何双层数据对象获取对应关系

Question

场景：我有两个对象数据：分别是：_defaultPrivilegeIcont 和 userConfig
需要实现的效果：
1、_defaultPrivilegeIcont 可以通过userConfig的awardListVO[xx][xx]item和levelCode 赋值到_defaultPrivilegeIcont的describe变成动态的赋值的效果；例如：_defaultPrivilegeIcont[0].list[0].describe = 'VIP1可享' 其中VIP1取的就是的userConfig的item,然后拿到的levelCode关系；
2、如果同时多个等级匹配中 需要获取最低的那个；比如：userConfig.awardListVO里面的item 有多个1 那么_defaultPrivilegeIcont[0].list.describe 就显示VIP1 获取的是等级最低的那个levelCode

实现了很多的方式都无法得到理想的状态；请知道的大佬帮忙看一下

// 目标数据
 const _defaultPrivilegeIcont = [
        {
          title: "平台特权",
          type: 1,
          list: [
            {
              levelCode: 1,
              defaultIcont: "portrait_v1",
              activeIcont: "portrait_v2",
              title: "权益头像框",
              describe: "",
              english: "Profile photo frame",
              content: "",
              lock: false,
              tips: "",
              id: "v-1",
              item: 1,
              layer: {
                title: "权益头像框",
                isLock: false,
                benefitText:
                  "vip专享，每达到新1级VIP等级，可解锁对应精美头像框。",
                tips: [],
                isBirthday: false,
                btnText: "",
              },
            },
            {
              levelCode: 3,
              defaultIcont: "coupons_v1",
              activeIcont: "coupons_v2",
              title: "升级奖励券",
              english: "Coupons after upgrades",
              describe: "",
              lock: false,
              tips: "50%Discount",
              content: "",
              id: "v-2",
              item: 2,
              layer: {
                title: "升级奖励劵",
                isLock: false,
                benefitText:
                  "vip3级及以上可享，每达到新1级VIP等级，可获得1张对应的无门槛优惠券。VIP等级越高,优惠券面值越高。",
                tips: ["*每一等级的优惠券每位用户只能领取一次"],
                isBirthday: false,
                btnText: "查看优惠券",
              },
            },
            {
              levelCode: 4,
              defaultIcont: "kd_v1",
              activeIcont: "kd_v2",
              title: "升级送KGold",
              english: "K-coins after upgrades",
              describe: "",
              lock: false,
              tips: "100k-Gold",
              content: "",
              id: "v-3",
              item: 3,
              layer: {
                title: "升级送KGold",
                isLock: false,
                benefitText:
                  "vip4级及以上可享，每达到新1级VIP等级，即可直接获得对应的KGOLD奖励。VIP等级越高，奖励的Kgold越多。",
                tips: [
                  "*每一等级的KGold奖励，每位用户只能享受一次",
                  "*Kgold可用于购买平台所有商品，方便快捷。",
                ],
                isBirthday: false,
                btnText: "查看KGold",
              },
            },
            {
              levelCode: 9,
              defaultIcont: "birthday_v1",
              activeIcont: "birthday_v2",
              title: "生日福利",
              english: "Birthday gift",
              describe: "",
              content: "",
              lock: false,
              tips: "",
              id: "v-4",
              item: 4,
              layer: {
                title: "生日福利",
                isLock: false,
                benefitText:
                  "svip专享，一年仅可领一次。可联系svip专属客服了解详情。",
                tips: ["*生日日期仅能修改一次"],
                isBirthday: true,
                btnText: "填写生日",
              },
            },
            {
              levelCode: 9,
              defaultIcont: "pleasantly_v1",
              activeIcont: "pleasantly_v2",
              title: "神秘惊喜",
              english: "Surprise gift",
              describe: "",
              content: "",
              lock: false,
              tips: "",
              id: "v-5",
              item: 5,
              layer: {
                title: "神秘惊喜",
                isLock: false,
                benefitText:
                  "svip3/4/5专享，周期惊喜礼物。您的svip专属客服将主动联系您，告知详情。",
                tips: "",
                isBirthday: false,
                btnText: "",
              },
            },
          ],
        },
        {
          title: "服务特权",
          type: 2,
          list: [
            {
              levelCode: 2,
              defaultIcont: "fast_v1",
              activeIcont: "fast_v2",
              title: "绿色客服通道",
              english: "Dedicated customer support",
              describe: "",
              content: "",
              lock: false,
              tips: "",
              id: "v-6",
              item: 6,
              layer: {
                title: "绿色客服通道",
                isLock: false,
                benefitText:
                  "vip2级及以上可享，优先排队，问题被优先处理，减少等待时间。",
                tips: "",
                isBirthday: false,
                btnText: "",
              },
            },
            {
              levelCode: 7,
              defaultIcont: "exclusive_v1",
              activeIcont: "exclusive_v2",
              title: "SVIP专属经理",
              english: "SVIP personal manager",
              content: "",
              describe: "",
              lock: false,
              tips: "",
              id: "v-7",
              item: 7,
              layer: {
                title: "SVIP专属经理",
                isLock: false,
                benefitText:
                  "svip专享，专属客服将主动联系您，问题快速响应，1对1服务。",
                tips: "",
                isBirthday: false,
                btnText: "",
              },
            },
          ],
        },
        {
          title: "游戏特权",
          type: 3,
          list: [
            {
              levelCode: 9,
              defaultIcont: "prop_v1",
              activeIcont: "prop_v2",
              english: "In-game items",
              title: "游戏道具申请",
              describe: "",
              content: "",
              lock: false,
              tips: "",
              id: "v-8",
              item: 8,
              layer: {
                title: "游戏道具申请",
                isLock: false,
                benefitText:
                  "svip专享，可在充值前，联系svip专属客服提出需求。为您单独申请特殊奖励。",
                tips: ["*请在充值前联系"],
                isBirthday: false,
                btnText: "",
              },
            },
          ],
        },
      ];

 const userConfig = [
        {
          country: "ph",
          levelCode: 0,
          levelOrder: 1,
          startSpendingExp: 0,
          endSpendingExp: 10,
          awardList: [],
          awardListVO: [],
        },
        {
          country: "ph",
          levelCode: 1,
          levelOrder: 2,
          startSpendingExp: 10,
          endSpendingExp: 100,
          awardList: [],
          awardListVO: [
            {
              type: 1,
              itemList: [
                {
                  item: 1,
                  content:
                    "https://cdn.cnbj1.fds.api.mi-img.com/kachishop-staging/cms/SVIP1-1.png",
                },
              ],
            },
          ],
        },
        {
          country: "ph",
          levelCode: 2,
          levelOrder: 3,
          startSpendingExp: 100,
          endSpendingExp: 500,
          awardList: [],
          awardListVO: [
            {
              type: 1,
              itemList: [
                {
                  item: 1,
                  content:
                    "https://cdn.cnbj1.fds.api.mi-img.com/kachishop-staging/cms/SVIP2.png",
                },
              ],
            },
            { type: 2, itemList: [{ item: 6 }] },
          ],
        },
        {
          country: "ph",
          levelCode: 3,
          levelOrder: 4,
          startSpendingExp: 500,
          endSpendingExp: 1000,
          awardList: [],
          awardListVO: [
            {
              type: 1,
              itemList: [
                {
                  item: 1,
                  content:
                    "https://cdn.cnbj1.fds.api.mi-img.com/kachishop-staging/cms/SVIP3.png",
                },
                { item: 3, content: "8" },
              ],
            },
            { type: 2, itemList: [{ item: 6 }] },
          ],
          KGoldCount: 8,
        },
        {
          country: "ph",
          levelCode: 4,
          levelOrder: 5,
          startSpendingExp: 1000,
          endSpendingExp: 2500,
          awardList: [],
          awardListVO: [
            {
              type: 1,
              itemList: [
                {
                  item: 1,
                  content:
                    "https://cdn.cnbj1.fds.api.mi-img.com/kachishop-staging/cms/SVIP4.png",
                },
                { item: 3, content: "10" },
              ],
            },
            { type: 2, itemList: [{ item: 6 }] },
          ],
          KGoldCount: 10,
        },
        {
          country: "ph",
          levelCode: 5,
          levelOrder: 6,
          startSpendingExp: 2500,
          endSpendingExp: 10000,
          awardList: [],
          awardListVO: [
            {
              type: 1,
              itemList: [
                {
                  item: 1,
                  content:
                    "https://cdn.cnbj1.fds.api.mi-img.com/kachishop-staging/cms/SVIP5.png",
                },
                { item: 3, content: "30" },
              ],
            },
            { type: 2, itemList: [{ item: 6 }] },
          ],
          KGoldCount: 30,
        },
        {
          country: "ph",
          levelCode: 6,
          levelOrder: 7,
          startSpendingExp: 10000,
          endSpendingExp: 25000,
          awardList: [],
          awardListVO: [
            {
              type: 1,
              itemList: [
                {
                  item: 1,
                  content:
                    "https://cdn.cnbj1.fds.api.mi-img.com/kachishop-staging/cms/SVIP6.png",
                },
                { item: 3, content: "150" },
              ],
            },
            { type: 2, itemList: [{ item: 6 }] },
          ],
          KGoldCount: 150,
        },
        {
          country: "ph",
          levelCode: 7,
          levelOrder: 8,
          startSpendingExp: 25000,
          endSpendingExp: 50000,
          awardList: [],
          awardListVO: [
            {
              type: 1,
              itemList: [
                {
                  item: 1,
                  content:
                    "https://cdn.cnbj1.fds.api.mi-img.com/kachishop-staging/cms/SVIP1.png",
                },
                { item: 3, content: "300" },
              ],
            },
            { type: 2, itemList: [{ item: 6 }, { item: 7 }] },
          ],
          KGoldCount: 300,
        },
        {
          country: "ph",
          levelCode: 8,
          levelOrder: 9,
          startSpendingExp: 50000,
          endSpendingExp: 150000,
          awardList: [],
          awardListVO: [
            {
              type: 1,
              itemList: [
                {
                  item: 1,
                  content:
                    "https://cdn.cnbj1.fds.api.mi-img.com/kachishop-staging/cms/SVIP2-1.png",
                },
                { item: 3, content: "500" },
              ],
            },
            { type: 2, itemList: [{ item: 6 }, { item: 7 }] },
          ],
          KGoldCount: 500,
        },
        {
          country: "ph",
          levelCode: 9,
          levelOrder: 10,
          startSpendingExp: 150000,
          endSpendingExp: 250000,
          awardList: [],
          awardListVO: [
            {
              type: 1,
              itemList: [
                {
                  item: 1,
                  content:
                    "https://cdn.cnbj1.fds.api.mi-img.com/kachishop-staging/cms/SVIP3-1.png",
                },
                { item: 2, content: "537" },
                { item: 3, content: "800" },
                { item: 4 },
                { item: 5 },
              ],
            },
            { type: 2, itemList: [{ item: 6 }, { item: 7 }] },
            { type: 3, itemList: [{ item: 8 }] },
          ],
          couponIds: ["537"],
          KGoldCount: 800,
        },
        {
          country: "ph",
          levelCode: 10,
          levelOrder: 11,
          startSpendingExp: 250000,
          endSpendingExp: 500000,
          awardList: [],
          awardListVO: [
            {
              type: 1,
              itemList: [
                {
                  item: 1,
                  content:
                    "https://cdn.cnbj1.fds.api.mi-img.com/kachishop-staging/cms/SVIP4-1.png",
                },
                { item: 2, content: "538,544" },
                { item: 3, content: "1000" },
                { item: 4 },
                { item: 5 },
              ],
            },
            { type: 2, itemList: [{ item: 6 }, { item: 7 }] },
            { type: 3, itemList: [{ item: 8 }] },
          ],
          couponIds: ["538", "544"],
          KGoldCount: 1000,
        },
        {
          country: "ph",
          levelCode: 11,
          levelOrder: 12,
          startSpendingExp: 500000,
          awardList: [],
          awardListVO: [
            {
              type: 1,
              itemList: [
                {
                  item: 1,
                  content:
                    "https://cdn.cnbj1.fds.api.mi-img.com/kachishop-staging/cms/SVIP5-1.png",
                },
                { item: 2, content: "539" },
                { item: 3, content: "2500" },
                { item: 4 },
                { item: 5 },
              ],
            },
            { type: 2, itemList: [{ item: 6 }, { item: 7 }] },
            { type: 3, itemList: [{ item: 8 }] },
          ],
          couponIds: ["539"],
          KGoldCount: 2500,
        },
      ];

Answer 1

几个疑问

(1) 示例中的 VIP1可享 压根没出现在数据中啊，所以这个信息从哪里来？

(2) 我分析了一下 userConfig 中 levelCode 和 item 的关系，结果如下

[
  { levelCode: 0, items: [] },
  { levelCode: 1, items: [ 1 ] },
  { levelCode: 2, items: [ 1, 6 ] },
  { levelCode: 3, items: [ 1, 3, 6 ] },
  { levelCode: 4, items: [ 1, 3, 6 ] },
  { levelCode: 5, items: [ 1, 3, 6 ] },
  { levelCode: 6, items: [ 1, 3, 6 ] },
  { levelCode: 7, items: [ 1, 3, 6, 7 ] },
  { levelCode: 8, items: [ 1, 3, 6, 7 ] },
  { levelCode: 9, items: [ 1, 2, 3, 4, 5, 6, 7, 8 ]},
  { levelCode: 10, items: [ 1, 2, 3, 4, 5, 6, 7, 8 ]},
  { levelCode: 11, items: [ 1, 2, 3, 4, 5, 6, 7, 8 ]}
]

确实存在一个 item 对应着多个 levelCode 的情况，但是 _defaultPrivilegeIcont.list 中的每一项都有 levelCode 值，为什么会需要按 item 去找最小的 levelCode？

(3) 算是一个建议：要找到 (2) 中描述的关系其实很容易，可以倒转过来建建立一个 item 到多个 levelCode 的映射，这时候要先找 item，再去找对应的最小 levelCode 就很容易了