If object set has an object property create an array

Question

I have a response value which is dynamic which i need to store in redux state,

Response consist of array of object and and name ex :

{data:[
 {name:"abc",age:"10",id:"10"}
 {name:"abc",age:"15",id:"20"}
 {name:"def",age:"15",id:"20"}
 ]
 name: "abc"
}

So if the name is same I need to create array with the name.

Expected :

abc:[
   {name:"abc",age:"10",id:"10"}
   {name:"abc",age:"15",id:"20"}
]

something I tried

data.map(function(o) {
       if(data.name ==o.name)
        return name[o];
 });

as I understood your question , you want to create an array of objects with the same property as the name property in the response object? — IAMSTR
– IAMSTR, Commented Jan 3, 2023 at 15:21
The callback of Array.prototype.map() is supposed to return something for every element in the array. — Andreas
– Andreas, Commented Jan 3, 2023 at 15:25

Ryan Zeelie · Accepted Answer · 2023-01-03 15:35:55Z

2

If you're wanting a new object with a key of the name property you could try something like this

const response = {
  data: [{
      name: "abc",
      age: "10",
      id: "10"
    },
    {
      name: "abc",
      age: "15",
      id: "20"
    },
    {
      name: "def",
      age: "15",
      id: "20"
    },
  ],
  name: "abc"
}

const createSet = (someData) => {
  let key = someData.name
  let data = someData.data.filter(e => e.name === key)
  return {
    [key]: data
  }
}

console.log(createSet(response))

edited Jan 3, 2023 at 15:35

answered Jan 3, 2023 at 15:26

Ryan Zeelie

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1 Comment

007DevilsWorkshop Over a year ago

i have extended my question here with your reply :stackoverflow.com/questions/75003100/…

SelVazi · Accepted Answer · 2023-01-03 16:20:17Z

1

You can extract duplicated using reduce and filter :

var data = {
data:[
 {name:"abc",age:"10",id:"10"},
 {name:"abc",age:"15",id:"20"},
 {name:"def",age:"15",id:"20"}
 ],
 name: "abc"
}

const lookup = data.data.reduce((a, e) => {
  a[e.name] = ++a[e.name] || 0;
  return a;
}, {});

console.log(data.data.filter(e => lookup[e.name]));

edited Jan 3, 2023 at 16:20

answered Jan 3, 2023 at 15:25

SelVazi

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1 Comment

007DevilsWorkshop Over a year ago

I have extended question here : stackoverflow.com/questions/75003100/…

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