/**
 * 將數字轉換成簡寫的形式（1k、1m、1b等）
 * @param   {number} number
 * @returns {string}
 */
export default function abbreviateNumber(number) {
  const SI_SYMBOLS = ["", "k", "m", "b", "t"];
  const tier = Math.log10(Math.abs(number)) / 3 | 0;
  const suffix = SI_SYMBOLS[tier];
  const scale = Math.pow(10, tier * 3);
  const scaledNumber = number / scale;

  return Math.round(scaledNumber) + suffix;
}