client/src/root-helpers/bytes.ts

   1 const dictionary: Array<{ max: number, type: string }> = [
   2   { max: 1024, type: 'B' },
   3   { max: 1048576, type: 'KB' },
   4   { max: 1073741824, type: 'MB' },
   5   { max: 1.0995116e12, type: 'GB' }
   6 ]
   7
   8 function getBytes (value: number, precision?: number | undefined): string | number {
   9   const format = dictionary.find(d => value < d.max) || dictionary[dictionary.length - 1]
  10   const calc = value / (format.max / 1024)
  11
  12   const num = precision === undefined
  13     ? calc
  14     : applyPrecision(calc, precision)
  15
  16   return `${num} ${format.type}`
  17 }
  18
  19 function applyPrecision (num: number, precision: number) {
  20   if (precision <= 0) {
  21     return Math.round(num)
  22   }
  23
  24   const tho = 10 ** precision
  25
  26   return Math.round(num * tho) / tho
  27 }
  28
  29 export {
  30   getBytes
  31 }