javascript get the details base on of array

Question

I Have 2 sets data the setA which consist of arrays and setB which consist of array of object

setA = ["1", "5", "3"];
setB =[
        {"_id": "1", "name": "jobert", "age": "30"},
        {"_id": "2", "name": "alex", "age": "30"},
        {"_id": "3", "name": "dianne", "age": "30"},
        {"_id": "4", "name": "jhon", "age": "30"},
        {"_id": "5", "name": "matt", "age": "30"},
      ];

i want to show the result as: jobert, matt, dianne

how can i do this on react native?

Same way as in JS vanilla. Loop `setB` and gather objects with proper ID — Justinas, Feb 12 '21 at 11:25

score 1 · Accepted Answer · answered Feb 12 '21 at 11:26

You can filter elements from setB on the basis of setA first and then use map to return only name property from objects in filtered array.

let setA = ["1", "5", "3"];
let setB =[
        {"_id": "1", "name": "jobert", "age": "30"},
        {"_id": "2", "name": "alex", "age": "30"},
        {"_id": "3", "name": "dianne", "age": "30"},
        {"_id": "4", "name": "jhon", "age": "30"},
        {"_id": "5", "name": "matt", "age": "30"},
      ];
      
let filteredData = setB.filter(elem => setA.includes(elem._id));
let result = filteredData.map((elem) => elem.name);

console.log(result);

javascript get the details base on of array

1 Answers1