JSFiddle - React, Tailwind, and code Playground

by Vladymyr Shevchuk

JavaScript

const arr = [
  [{a: 'a', b: 'b', c: 'c'}, {a: 'a', b: 'b', c: 'c'}], 
  [{a: 'a', b: 'b', c: 'c'}], 
  [{a: 'a', b: 'b', c: 'c'}]
];

const newArr = arr.map(item => item.map(el => ({a: el.a, b: el.b})));

console.log('newArr', newArr);