JSFiddle - React, Tailwind, and code Playground

JavaScript

const fails = () => {
  const x = {
    0: 'help',
    length: 1
  };

  const y = [x].map(Array.from); // will throw an Error
  return y;
};

const works = () => {
  const x = {
    0: 'help',
    length: 1
  };

  const y = [x].map(item => Array.from(item)); // will work
  return y;
};

console.log(works());
console.log(fails());