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javascript - for循环中的UUIDV4不改变值

问题描述

我正在尝试创建一个函数来生成一个以 UUID 作为键的对象数组，以及一些嵌套对象 ID 的 UUID。

每个游戏都将基于我导入文件的模拟对象。

该函数需要一个将分配给一个键的运动（字符串）和一个将确定 for 循环迭代的数量（数字）。

当使用 for 循环时，嵌套对象 ID 的 UUID 在每次迭代时都会被覆盖。

const mockGame = require('../mock-game');
const uuidv4 = require('uuid/v4');

function generateMockGames(sport, quantity) {
    let games = []

    for (let i = 0; i < quantity; i++) {
        let game = {}
        let id = uuidv4()

        game[id] = {
            search: mockGame.search,
            query: mockGame.query,
            variables: mockGame.variables,
        }

        game[id].search.eventId = id
        game[id].search.competition.categoryName = sport

        game[id].search.id = id
        game[id].search.competition.categoryName = sport;

        games.push(game);
    }

    return games;
}

const mockFootballGame = generateMockGames('football', 3);

预期结果：

[
  {
    '286c1911-b155-4197-bbde-64dba0b304fe': {
       search: {
           eventId: '286c1911-b155-4197-bbde-64dba0b304fe',
           name: 'test name',
           competition: {
               categoryName: 'football'
           }
      },
      query: {
           id: '286c1911-b155-4197-bbde-64dba0b304fe',
           competition: {
               categoryName: 'football'
           }
      },
      variables: {
           name: 'test name'
      }
  },
  {
    '082a46a6-4dde-433d-8011-9e94a5ee79ff': {
       search: {
           eventId: '082a46a6-4dde-433d-8011-9e94a5ee79ff',
           name: 'test name',
           competition: {
               categoryName: 'football'
           }
      },
      query: {
           id: '082a46a6-4dde-433d-8011-9e94a5ee79ff',
           competition: {
               categoryName: 'football'
           }
      },
      variables: {
           name: 'test name'
      }
  },
  {
    'ba911751-3ea3-40ab-9bec-c525ab2a07b9': {
       search: {
           eventId: 'ba911751-3ea3-40ab-9bec-c525ab2a07b9',
           name: 'test name',
           competition: {
               categoryName: 'football'
           }
      },
      query: {
           id: 'ba911751-3ea3-40ab-9bec-c525ab2a07b9',
           competition: {
               categoryName: 'football'
           }
      },
      variables: {
           name: 'test name'
      }
  }
]

输出是：

[
  {
    '286c1911-b155-4197-bbde-64dba0b304fe': {
       search: {
           eventId: 'ba911751-3ea3-40ab-9bec-c525ab2a07b9',
           name: 'test name',
           competition: {
               categoryName: 'football'
           }
      },
      query: {
           id: 'ba911751-3ea3-40ab-9bec-c525ab2a07b9',
           competition: {
               categoryName: 'football'
           }
      },
      variables: {
           name: 'test name'
      }
  },
  {
    '082a46a6-4dde-433d-8011-9e94a5ee79ff': {
       search: {
           eventId: 'ba911751-3ea3-40ab-9bec-c525ab2a07b9',
           name: 'test name',
           competition: {
               categoryName: 'football'
           }
      },
      query: {
           id: 'ba911751-3ea3-40ab-9bec-c525ab2a07b9',
           competition: {
               categoryName: 'football'
           }
      },
      variables: {
           name: 'test name'
      }
  },
  {
    'ba911751-3ea3-40ab-9bec-c525ab2a07b9': {
       search: {
           eventId: 'ba911751-3ea3-40ab-9bec-c525ab2a07b9',
           name: 'test name',
           competition: {
               categoryName: 'football'
           }
      },
      query: {
           id: 'ba911751-3ea3-40ab-9bec-c525ab2a07b9',
           competition: {
               categoryName: 'football'
           }
      },
      variables: {
           name: 'test name'
      }
  }
]

标签： javascriptfunctionuuid

解决方案

您正在将mockGame循环中的子对象分配给条目，而不复制它们。因此，您在循环中使用新的 uuid 继续覆盖mockGame.query.id等，然后将mockGame.query对象作为一个整体分配给您的输出。

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