对嵌套对象数组中的项重新编制索引时出现问题

我有一个具有以下结构的对象数组:

[
  {
    "id": 1,
    "uid": "card-vwy733s3rC",
    "body": {
      "text": "Test"
    },
    "type": 0,
    "button": [
      {
        "uid": "button-tFDHsmExnx",
        "title": "Get Started",
        "event": [
          {
            "id": 2,
            "action": 5,
            "value": "https://en.wikipedia.org/wiki/Educational_technology"
          },
          {
            "id": 2,
            "action": 5,
            "value": "https://en.wikipedia.org/wiki/Educational_technology"
          }
        ],
        "isEnabled": true
      }
    ],
    "audio": {
      "uid": "audio-NVBK0U6BXE",
      "url": "https://s3.eu-west-2.amazonaws.com/media.testing.co.uk/default/testing_startup_ideas.mp3"
    }
  }
]

button -> event -> id 有时,提供最顶级的uid匹配。这意味着两个2变成了1和2。但是,当我在下面运行我的方法时,它不起作用,并且它会为 button -> event 数组:

  static resetCourseContentButtonEventIndexes(
    courseContent: ICourseContent[],
    selectedCourseContentUid: string
  ): ICourseContent[] {
    for (let i = 0; i < courseContent.length; i++) {
      if (courseContent[i].uid === selectedCourseContentUid) {
        for (let j = 0; j < courseContent[i].button.length; j++) {
          for (let k = 0; k < courseContent[i].button[j].event.length; k++) {
            courseContent[i].button[j].event[k].id = k + 1;
          }
        }
      }
    }
    return courseContent;
  }

我很困惑为什么会发生这种情况,有人能提供一些关于如何解决它的建议吗?

我从另一个方法调用它:

static cloneCourseContentButtonEventByIndex(
    courseContent: ICourseContent[],
    selectedCourseContentUid: string,
    selectedCourseElementUid: string,
    courseContentButtonEventIndex: number
  ) {
    for (let i = 0; i < courseContent.length; i++) {
      if (courseContent[i].uid === selectedCourseContentUid) {
        for (let j = 0; j < courseContent[i].button.length; j++) {
          if (courseContent[i].button[j].uid === selectedCourseElementUid) {
            courseContent[i].button[j].event.push(
              courseContent[i].button[j].event[courseContentButtonEventIndex]
            );
          }
        }
      }
    }
    return JSON.parse(
      JSON.stringify(
        this.resetCourseContentButtonEventIndexes(courseContent, selectedCourseContentUid)
      )
    );
  }