Get ids from array of objects

Question

I am new to Typescript. I want to select ids from observable I have an array as below. Please help me to get the expected output.

const Input=[{
  "id": 1,
  "text": "My Choice 1"
}, {
  "id": 2,
  "text": "My Choice 2"
}, {
  "id": 3,
  "text": "My Choice 3"
}, {
  "id": 4,
  "text": "My Choice 4"
}, {
  "id": 5,
  "text": "My Choice 5"
}];

Expected Result :

let selectedIds = [
      {id: "Choice", name: "2"},
      {id: "Choice", name: "3"},
      {id: "Choice", name: "5"}];

Answer 1

Use array.map to transform the objects

 const Input=[{ "id": 1, "text": "My Choice 1" }, { "id": 2, "text": "My Choice 2" }, { "id": 3, "text": "My Choice 3" }, { "id": 4, "text": "My Choice 4" }, { "id": 5, "text": "My Choice 5" }]; let Result = Input.map(choice => ({ id: "choice", name: choice.id })); console.log(Result);

Answer 2

let selectedIds = Input.map(item => 
{
  return {
    id: item.text,
    name: item.id
  };
})