JSFiddle - React, Tailwind, and code Playground

by John Wick

JavaScript

console.clear();

const arr = [
  { data: { name: "first", type: "child" } },
  { data: { name: "second", type: "parent" } },
];

const a = arr.map(e => ({
    data: {
       name: e.name,
       type: e.type.toUpperCase()
    }
}))

console.log(a);