JavaScript function that builds a progress bar using emojis

function getProgressBar(numerator: number, denominator: number) {
    const percentage = Math.round((numerator / denominator) * 100);
    const tenths = Math.round(percentage / 10);

    const barTenths = [
      '⬜️⬜️⬜️⬜️⬜️⬜️⬜️⬜️⬜️⬜️',
      '🟦⬜️⬜️⬜️⬜️⬜️⬜️⬜️⬜️⬜️',
      '🟦🟦⬜️⬜️⬜️⬜️⬜️⬜️⬜️⬜️',
      '🟦🟦🟦⬜️⬜️⬜️⬜️⬜️⬜️⬜️',
      '🟦🟦🟦🟦⬜️⬜️⬜️⬜️⬜️⬜️',
      '🟦🟦🟦🟦🟦⬜️⬜️⬜️⬜️⬜️',
      '🟦🟦🟦🟦🟦🟦⬜️⬜️⬜️⬜️',
      '🟦🟦🟦🟦🟦🟦🟦⬜️⬜️⬜️',
      '🟦🟦🟦🟦🟦🟦🟦🟦⬜️⬜️',
      '🟦🟦🟦🟦🟦🟦🟦🟦🟦️⬜️',
      '🟩🟩🟩🟩🟩🟩🟩🟩🟩🟩',
    ];

    return barTenths[tenths];
  };