dappros/ethora

/*
Copyright 2019-2022 (c) Dappros Ltd, registered in England & Wales, registration number 11455432. All rights reserved.
You may not use this file except in compliance with the License.
You may obtain a copy of the License at https://github.com/dappros/ethora/blob/main/LICENSE.
Note: linked open-source libraries and components may be subject to their own licenses.
*/

export function formatBytes(bytes, decimals = 2) {
  if (bytes === 0) return {size: 0, unit: 'Bytes'};

  const k = 1024;
  const dm = decimals < 0 ? 0 : decimals;
  const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];

  const i = Math.floor(Math.log(bytes) / Math.log(k));

  return {
    size: parseFloat((bytes / Math.pow(k, i)).toFixed(dm)),
    unit: sizes[i],
  };
}