m-datas v1.0.3

Installation and import

• Using npm

  npm install m-datas

• Using yarn

  yarn add m-datas

• ES6 import mode

  import Data from 'm-datas'

Use examples

• Object array to object

  const sourceModel = [
    { id: 1, name: '巨量' },
    { id: 2, name: '微信' },
    { id: 3, name: '广点通' }
  ]
  const resultModel = Data.listToMapByValue(sourceModel, 'id')

  Output results

  {
    1: { id: 1, name: '巨量' },
    2: { id: 2, name: '微信' },
    3: { id: 3, name: '广点通' }
  }

• Merge multidimensional object arrays and remove duplicate

  const sourceModel = [
    { year: "2020", month: 1, startDate: "2020-01-01", endDate: "2020-01-31" },
    { year: "2020", month: 2, startDate: "2020-02-01", endDate: "2020-02-29" },
    { year: "2021", month: 1, startDate: "2021-01-01", endDate: "2021-01-31" },
    { year: "2021", month: 2, startDate: "2021-02-01", endDate: "2021-02-28" }
  ]
  const resultModel = Data.unique(sourceModel, 'year')

  Output results

  [
    {
      year: "2020",
      options: [
        { year: "2020", month: 1, startDate: "2020-01-01", endDate: "2020-01-31" },
        { year: "2020", month: 2, startDate: "2020-02-01", endDate: "2020-02-29" }
      ]
    },
    {
      year: "2021",
      options: [
        { year: "2021", month: 1, startDate: "2021-01-01", endDate: "2021-01-31" },
        { year: "2021", month: 2, startDate: "2021-02-01", endDate: "2021-02-28" }
      ]
    }
  ]

• List structure to tree structure

  const sourceModel = [
    { id: 1, name: 'M1部门' },
    { id: 11, pid: 1, name: '张三' },
    { id: 12, pid: 1, name: '李四' },
    { id: 13, pid: 1, name: '王五' },
    { id: 2, name: 'M2部门' },
    { id: 21, pid: 2, name: '赵六' },
    { id: 22, pid: 2, name: '周七' },
    { id: 23, pid: 2, name: '吴八' }
  ]
  const resultModel = Data.listToTree(sourceModel, 'id', 'pid')

  Output results

  [
    {
      id: 1,
      name: 'M1部门',
      children: [
        { id: 11, pid: 1, name: '张三' },
        { id: 12, pid: 1, name: '李四' },
        { id: 13, pid: 1, name: '王五' }
      ]
    },
    {
      id: 2,
      name: 'M2部门',
      children: [
        { id: 21, pid: 2, name: '赵六' },
        { id: 22, pid: 2, name: '周七' },
        { id: 23, pid: 2, name: '吴八' }
      ]
    }
  ]

使用示例

• 对象数组转为对象，如：{ 数组中各个对象的某个字段值: 对象本身 }

  const sourceModel = [
    { id: 1, name: '巨量' },
    { id: 2, name: '微信' },
    { id: 3, name: '广点通' }
  ]
  const resultModel = Data.listToMapByValue(sourceModel, 'id')

  输出结果

  {
    1: { id: 1, name: '巨量' },
    2: { id: 2, name: '微信' },
    3: { id: 3, name: '广点通' }
  }

• 合并多维对象数组并去重

  const sourceModel = [
    { year: "2020", month: 1, startDate: "2020-01-01", endDate: "2020-01-31" },
    { year: "2020", month: 2, startDate: "2020-02-01", endDate: "2020-02-29" },
    { year: "2021", month: 1, startDate: "2021-01-01", endDate: "2021-01-31" },
    { year: "2021", month: 2, startDate: "2021-02-01", endDate: "2021-02-28" }
  ]
  const resultModel = Data.unique(sourceModel, 'year')

  输出结果

  [
    {
      year: "2020",
      options: [
        { year: "2020", month: 1, startDate: "2020-01-01", endDate: "2020-01-31" },
        { year: "2020", month: 2, startDate: "2020-02-01", endDate: "2020-02-29" }
      ]
    },
    {
      year: "2021",
      options: [
        { year: "2021", month: 1, startDate: "2021-01-01", endDate: "2021-01-31" },
        { year: "2021", month: 2, startDate: "2021-02-01", endDate: "2021-02-28" }
      ]
    }
  ]

• 列表结构转为树结构

  const sourceModel = [
    { id: 1, name: 'M1部门' },
    { id: 11, pid: 1, name: '张三' },
    { id: 12, pid: 1, name: '李四' },
    { id: 13, pid: 1, name: '王五' },
    { id: 2, name: 'M2部门' },
    { id: 21, pid: 2, name: '赵六' },
    { id: 22, pid: 2, name: '周七' },
    { id: 23, pid: 2, name: '吴八' }
  ]
  const resultModel = Data.listToTree(sourceModel, 'id', 'pid')

  输出结果

  [
    {
      id: 1,
      name: 'M1部门',
      children: [
        { id: 11, pid: 1, name: '张三' },
        { id: 12, pid: 1, name: '李四' },
        { id: 13, pid: 1, name: '王五' }
      ]
    },
    {
      id: 2,
      name: 'M2部门',
      children: [
        { id: 21, pid: 2, name: '赵六' },
        { id: 22, pid: 2, name: '周七' },
        { id: 23, pid: 2, name: '吴八' }
      ]
    }
  ]