sanity/src/core/form/inputs/common/helper.ts

Sanity is a real-time content infrastructure with a scalable, hosted backend featuring a Graph Oriented Query Language (GROQ), asset pipelines and fast edge caches

/* method which returns a file size in a readable format */
export function formatBytes(bytes: number, decimals = 2) {
  if (bytes === 0) return '0 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 `${parseFloat((bytes / Math.pow(k, i)).toFixed(dm))} ${sizes[i]}`
}