JSFiddle - React, Tailwind, and code Playground

JavaScript

var o = {a: 1, b: 2, c: 3}

function keyValueArray (o) {
  var keys = [];
  var values = [];

  for (var k in o ) {
    keys.push(k);
    values.push(o[k]);
  }
  return [keys,values]
}

console.log(keyValueArray(o));