cheetah-framework/js/framework/utils/Number.js

Cheetah Framework JS used in all our applications

/**
 * Helper for Number
 *
 * @param {number} number
 * @param {boolean} dashEmpty
 * @returns {string|number|*}
 */
function humanReadable (number, dashEmpty = false) {
  if (_.includes([null, undefined, ''], number)) {
    return dashEmpty ? '---' : ''
  }

  if (typeof number !== 'number') {
    return number
  }

  return numberWithDigits(number, 3)
}

function roundDigits (nbr, digits) {
  return Math.round(nbr * Math.pow(10, digits)) * Math.pow(10, -digits)
}

function numberWithDigits (nbr, digits) {
  if (nbr === 0) {
    return 0
  }

  const log10 = Math.log10(nbr)
  let suffix = ''

  if (log10 >= 9) {
    nbr = nbr / Math.pow(10, 9)
    suffix = ' G'
  } else if (log10 >= 6) {
    nbr = nbr / Math.pow(10, 6)
    suffix = ' M'
  } else if (log10 >= 3) {
    nbr = nbr / Math.pow(10, 3)
    suffix = ' k'
  } else {
    return nbr
  }

  digits = digits - Math.floor(Math.log10(nbr)) - 1
  const roundedNumber = roundDigits(nbr, digits)

  return (digits > 0 ? roundedNumber.toFixed(digits) : roundedNumber) + suffix
}

export {
  humanReadable
}