Converts color hex to decimal

colorConvert.js

function toHex(n: number) {
  return ('0' + n.toString(16)).slice(-2);
}

// ES6

function hexToRGB(code) {
  const [r, g, b] = code.replace('#', '')
    .match(/../g).map((hex) => parseInt(hex, 16));
  return {r, g, b};
}

function rgbToHex({r, g, b}) {
  return [r, g, b].map(toHex).reduce((acc, c) => acc + c, '#');
}

// ES5

function hexToRGB(code) {
  var c = code.replace('#', '')
        .match(/../g).map(function(hex) {return parseInt(hex, 16)});
  return {r: c[0], g: c[1], b: [2]};
}

function rgbToHex(color) {
  return ['r', 'g', 'b']
    .map(toHex)
    .reduce(function(acc, c) { return acc + color[c]; }, '#');
}