根据嵌套对象过滤嵌套对象数组

Question

我想根据嵌套对象中的值过滤数组。

我的代码如下所示，用于查找包含 "inventory_type" 或 "Credit" 的产品，但我收到一条错误消息，提示某些产品不是函数，需要一些有关最佳搜索方法的指导这么深的数组

let object = [{
  "summary": [{
    "count": 2,
    "inventory_region": "England & Wales",
    "inventory_type": "Add-on"
  }, {
    "count": 2,
    "inventory_region": "England & Wales",
    "inventory_type": "Credit"
  }, {
    "count": 2,
    "inventory_region": "England & Wales",
    "inventory_type": "Social-boost"
  }, {
    "count": 2,
    "inventory_region": "Scotland",
    "inventory_type": "Add-on"
  }, {
    "count": 2,
    "inventory_region": "Scotland",
    "inventory_type": "Credit"
  }],
  "products": [{
    "count": 2,
    "display_label_short": "14 Day Add On E&W",
    "inventory_region": "England & Wales",
    "display_label": "14 Day Add On E&W",
    "inventory_type": "Add-on"
  }, {
    "count": 2,
    "display_label_short": "Standard 28 Day Listing E&W",
    "inventory_region": "England & Wales",
    "display_label": "Standard 28 Day Listing E&W",
    "inventory_type": "Credit"
  }, {
    "count": 2,
    "display_label_short": "14 Day Boost E&W",
    "inventory_region": "England & Wales",
    "display_label": "14 Day Boost E&W",
    "inventory_type": "Social-boost"
  }, {
    "count": 2,
    "display_label_short": "14 Day Add On SCO",
    "inventory_region": "Scotland",
    "display_label": "14 Day Add On SCO",
    "inventory_type": "Add-on"
  }, {
    "count": 2,
    "display_label_short": "Standard 28 Day Listing SCO",
    "inventory_region": "Scotland",
    "display_label": "Standard 28 Day Listing SCO",
    "inventory_type": "Credit"
  }],
  "company_id": 2876909,
  "company_name": "Automated Testing"
}]


let newArr = object.map(objects => {
  return objects.products.filter(products => {
    products.some(product => product.inventory_type === 'Credit')
  })
})

console.log(newArr)

Answer 1

您的过滤似乎过于深入了：

let object = [{
  "summary": [{
    "count": 2,
    "inventory_region": "England & Wales",
    "inventory_type": "Add-on"
  }, {
    "count": 2,
    "inventory_region": "England & Wales",
    "inventory_type": "Credit"
  }, {
    "count": 2,
    "inventory_region": "England & Wales",
    "inventory_type": "Social-boost"
  }, {
    "count": 2,
    "inventory_region": "Scotland",
    "inventory_type": "Add-on"
  }, {
    "count": 2,
    "inventory_region": "Scotland",
    "inventory_type": "Credit"
  }],
  "products": [{
    "count": 2,
    "display_label_short": "14 Day Add On E&W",
    "inventory_region": "England & Wales",
    "display_label": "14 Day Add On E&W",
    "inventory_type": "Add-on"
  }, {
    "count": 2,
    "display_label_short": "Standard 28 Day Listing E&W",
    "inventory_region": "England & Wales",
    "display_label": "Standard 28 Day Listing E&W",
    "inventory_type": "Credit"
  }, {
    "count": 2,
    "display_label_short": "14 Day Boost E&W",
    "inventory_region": "England & Wales",
    "display_label": "14 Day Boost E&W",
    "inventory_type": "Social-boost"
  }, {
    "count": 2,
    "display_label_short": "14 Day Add On SCO",
    "inventory_region": "Scotland",
    "display_label": "14 Day Add On SCO",
    "inventory_type": "Add-on"
  }, {
    "count": 2,
    "display_label_short": "Standard 28 Day Listing SCO",
    "inventory_region": "Scotland",
    "display_label": "Standard 28 Day Listing SCO",
    "inventory_type": "Credit"
  }],
  "company_id": 2876909,
  "company_name": "Automated Testing"
}]


let newArr = object.map(objects => {
  return objects.products.filter(product => (product.inventory_type === 'Credit'))
})

console.log(newArr)

Answer 2

您的"inner products"不是数组，只是一个产品

 let object = [{ "summary": [{ "count": 2, "inventory_region": "England & Wales", "inventory_type": "Add-on" }, { "count": 2, "inventory_region": "England & Wales", "inventory_type": "Credit" }, { "count": 2, "inventory_region": "England & Wales", "inventory_type": "Social-boost" }, { "count": 2, "inventory_region": "Scotland", "inventory_type": "Add-on" }, { "count": 2, "inventory_region": "Scotland", "inventory_type": "Credit" }], "products": [{ "count": 2, "display_label_short": "14 Day Add On E&W", "inventory_region": "England & Wales", "display_label": "14 Day Add On E&W", "inventory_type": "Add-on" }, { "count": 2, "display_label_short": "Standard 28 Day Listing E&W", "inventory_region": "England & Wales", "display_label": "Standard 28 Day Listing E&W", "inventory_type": "Credit" }, { "count": 2, "display_label_short": "14 Day Boost E&W", "inventory_region": "England & Wales", "display_label": "14 Day Boost E&W", "inventory_type": "Social-boost" }, { "count": 2, "display_label_short": "14 Day Add On SCO", "inventory_region": "Scotland", "display_label": "14 Day Add On SCO", "inventory_type": "Add-on" }, { "count": 2, "display_label_short": "Standard 28 Day Listing SCO", "inventory_region": "Scotland", "display_label": "Standard 28 Day Listing SCO", "inventory_type": "Credit" }], "company_id": 2876909, "company_name": "Automated Testing" }] 

let newArr = object.map(objects => objects.products.filter(product =>
  product.inventory_type === 'Credit'
))

console.log(newArr)

根据嵌套对象过滤嵌套对象数组

Filter array of nested objects based on nested object

javascript

arrays

ecmascript-6

nested-object