JSFiddle - React, Tailwind, and code Playground

by Rudolf Mankevich

JavaScript

const arr = {
	a: 1,
  b: 2,
  c: 3
};

const toPairs = (input) => Object.keys(input).map((key) => [key, input[key]]);

const fromPairs = (input) => {
	const output = {};
  
  input.forEach((item) => {
  	output[item[0]] = item[1];
  });
  
  return output;
};

const pairs = toPairs(arr);

console.log(pairs);
console.log(fromPairs(pairs))