src/plugins/prettyBytes.js


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export default ({ Vue }) => {
  Vue.filter('prettyBytes', function (value) {
    const UNITS = ['B', 'kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']

    if (!Number.isFinite(value)) {
      throw new TypeError(`Expected a finite number, got ${typeof value}: ${value}`)
    }

    const neg = value < 0

    if (neg) {
      value = -value
    }

    if (value < 1) {
      return (neg ? '-' : '') + value + ' B'
    }

    const exponent = Math.min(Math.floor(Math.log10(value) / 3), UNITS.length - 1)
    const numStr = Number((value / Math.pow(1000, exponent)).toPrecision(3))
    const unit = UNITS[exponent]

    return (neg ? '-' : '') + numStr + ' ' + unit
  })
}