Typescript: Convert bytes to human friendly string

BytesToSize.ts

const bytesToSize = (bytes: number) => {
  var sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB'];
  if (bytes == 0) return '0 Byte';
  var i = parseInt(Math.floor(Math.log(bytes) / Math.log(1024)).toString());
  return Math.round(bytes / Math.pow(1024, i)) + ' ' + sizes[i];
}