在javascript

Question

我在Html / Javascript编码， 我有一个包含列表的JSON：＆＃34; Intervenant＆＃34;在＆＃34; Intervenant＆＃34;的每一项中他们有一个名为＆＃34; ListCoursa＆＃34;

这里是JSON：

    {
  "Intervenant": [
  {
    "name": "John Doe",
    "dateOfBirth": "1980-01-02T00:00:00.000Z",
    "registered": true,
    "ListeCoursa": [
      {
        "cours": "Cardio",
        "Date": "2016-05-02T00:00:00.000Z",
        "Horaire": "9-11",
        "Semaine": "1"
      },
      {
        "cours": "Flex",
        "Date": "1980-05-02T00:00:00.000Z",
        "Horaire": "14-16",
        "Semaine": "1"
      },
      {
        "cours": "Basic",
        "Date": "2016-05-03T00:00:00.000Z",
        "Horaire": "18-20",
        "Semaine": "1"
      },
      {
        "cours": "Flex",
        "Date": "1980-05-04T00:00:00.000Z",
        "Horaire": "14-16",
        "Semaine": "1"
      },
      {
        "cours": "Cardio",
        "Date": "2016-05-09T00:00:00.000Z",
        "Horaire": "9-11",
        "Semaine": "2"
      },
      {
        "cours": "Flex",
        "Date": "1980-05-09T00:00:00.000Z",
        "Horaire": "14-16",
        "Semaine": "2"
      },
      {
        "cours": "Basic",
        "Date": "2016-05-10T00:00:00.000Z",
        "Horaire": "18-20",
        "Semaine": "2"
      },
      {
        "cours": "Flex",
        "Date": "1980-05-11T00:00:00.000Z",
        "Horaire": "14-16",
        "Semaine": "2"
      }
    ]
  }, 
  {
    "name": "John Doe2",
    "dateOfBirth": "1980-01-02T00:00:00.000Z",
    "registered": true,
    "ListeCoursa": [
      {
        "cours": "Cardio",
        "Date": "2016-05-01T00:00:00.000Z",
        "Horaire": "10-12",
        "Semaine": "10"
      },
      {
        "cours": "Flex",
        "Date": "1980-05-02T00:00:00.000Z",
        "Horaire": "14-16",
        "Semaine": "10"
      },
      {
        "cours": "Basic",
        "Date": "2016-05-03T00:00:00.000Z",
        "Horaire": "18-20",
        "Semaine": "10"
      },
      {
        "cours": "Flex",
        "Date": "1980-05-04T00:00:00.000Z",
        "Horaire": "14-16",
        "Semaine": "10"
      },
      {
        "cours": "Cardio",
        "Date": "2016-05-09T00:00:00.000Z",
        "Horaire": "9-11",
        "Semaine": "10"
      },
      {
        "cours": "Flex",
        "Date": "1980-05-09T00:00:00.000Z",
        "Horaire": "14-16",
        "Semaine": "20"
      },
      {
        "cours": "Basic",
        "Date": "2016-05-10T00:00:00.000Z",
        "Horaire": "18-20",
        "Semaine": "20"
      },
      {
        "cours": "Flex",
        "Date": "1980-05-11T00:00:00.000Z",
        "Horaire": "14-16",
        "Semaine": "20"
      }
    ]

  },
  {
    "name": "John Doe3",
    "dateOfBirth": "1980-01-02T00:00:00.000Z",
    "registered": true,
    "ListeCoursa": [
      {
        "cours": "Circuit",
        "Date": "1980-05-22T00:00:00.000Z",
        "Horaire": "8-10",
        "Semaine":"210"
      },
      {
        "cours": "Cardio-pump",
        "Date": "1980-02-22T00:00:00.000Z",
        "Horaire": "16-18",
        "Semaine": "210"
      }
    ]

  }

]
}

我需要计算＆＃34; cours＆＃34;在一周内。为此我已经把变量＆＃34; Semaine＆＃34;在JSON中表明课程在哪一周（＆＃34; Semaine＆＃34;：＆＃34; 20＆＃34;表示课程在第20周给出）。

我的问题是如何获得所有＆＃34; cours＆＃34;来自＆＃34; Semaine：数字＆＃34;在javascript？

我希望我很清楚， 感谢。

Answer 1

这是一个函数，可以汇总每个semaines的所有元素：

MainActivity