Currency Filter

index.js

export default {
  /**
   * 12345 => $12,345.00
   *
   * @param {String} sign
   * @param {Number} decimals Decimal places
   */

  currency (value, currency, decimals) {
    value = parseFloat(value)
    if (!isFinite(value) || (!value && value !== 0)) return ''
    currency = currency != null ? currency : '$'
    decimals = decimals != null ? decimals : 2
    var stringified = Math.abs(value).toFixed(decimals)
    var _int = decimals
      ? stringified.slice(0, -1 - decimals)
      : stringified
    var i = _int.length % 3
    var head = i > 0
      ? (_int.slice(0, i) + (_int.length > 3 ? ',' : ''))
      : ''
    var _float = decimals
      ? stringified.slice(-1 - decimals)
      : ''
    var sign = value < 0 ? '-' : ''
    return sign + currency + head +
      _int.slice(i).replace(digitsRE, '$1,') +
      _float
  }
}