code: function formatBytes(num) {
    if (!Number.isFinite(num)) {
      return 'Could not retrieve value';
    }
  
    const UNITS = ['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB'];
  
    const neg = num < 0;
    if (neg) num = -num;
  
    if (num < 1) {
      return (neg ? '-' : '') + num + ' B';
    }
  
    const exponent = Math.min(Math.floor(Math.log(num) / Math.log(1024)), UNITS.length - 1);
    const numStr = Number((num / Math.pow(1024, exponent)).toPrecision(3));
    const unit = UNITS[exponent];
  
    return (neg ? '-' : '') + numStr + ' ' + unit;
  }
docs: Formats the number into "human readable" number/
  
  @param {Number} num The number to format.
  @returns {string} The number as a string or error text if we couldn't
  format it.