Generate an array of hex color strings

unicorn-drops.ts

const unicornDrops = (nugglets: number) => {
  // From http://www.nikolay.rocks/2015-10-29-rainbows-generator-in-javascript
  // https://livias.co.uk/2018/03/15/nugglets-launch-whole-foods-exclusive/ --- like for real
  const sinToHex = (i: number, phase: number) => {
    const sin = Math.sin(Math.PI / nugglets * 2 * i + phase);
    const int = Math.floor(sin * 127) + 128;
    const hex = int.toString(16);

    return hex.length === 1 ? '0' + hex : hex;
  };

  return Array(nugglets).fill(null).map((v, i) => {
    const red = sinToHex(i, 0 * Math.PI * 2 / 3); // 0   deg
    const blue = sinToHex(i, 1 * Math.PI * 2 / 3); // 120 deg
    const green = sinToHex(i, 2 * Math.PI * 2 / 3); // 240 deg
    return '#' + red + green + blue;
  });
};