javascript - 过滤具有多个属性的多个数组对象

Question

我正在尝试创建一个过滤器函数，它可以从给定的字符串键集中返回与我正在寻找的值匹配的数据结果

数组示例:

let data = [
 { id:1 , data:{ name:"sample1",address:{ cat:"business" } } },
 { id:2 , data:{ name:"sample2",address:{ cat:"office"  }  } },
 { id:3 , data:{ name:"sample3",address:{ cat:"office"  } } },
 { id:4 , data:{ name:"sample4",address:{ cat:"office"  }  } }
 { id:5 , data:{ name:"sample5",address:{ cat:"home"  } } }
 { id:6 , data:{ name:"sample6",address:{ cat:"home"  }  } }
]



function filter( collection , value ,key ){
  //code 
}


let result = filter( data , "business" , [ "data","address","cat" ] )

console.log(result)

预期结果是

{ id:1 , data:{ name:"sample1",address:{ cat:"business" } } },

Answer 1

您可以使用filter 来搜索数据。使用 reduce 构造键。

注意:filter 返回匹配元素的数组。如果您只喜欢第一个匹配项，则可以使用 find

const data = [
  { id: 1, data: { name: "sample1", address:{ cat: "business" } } },
  { id: 2, data: { name: "sample2", address:{ cat: "office" } } },
  { id: 3, data: { name: "sample3", address:{ cat: "office" } } },
  { id: 4, data: { name: "sample4", address:{ cat: "office" } } },
  { id: 5, data: { name: "sample5", address:{ cat: "home" } } },
  { id: 6, data: { name: "sample6", address:{ cat: "home" } } }
]

const filter = (collection, keys, value) => 
  collection.filter(o => keys.reduce((c, v) => c[v] || {}, o) === value)
const result = filter(data, ["data", "address", "cat"], "business")

console.log(result)